diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..f6fd310
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,282 @@
+name: Build Packages
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+      - master
+    tags:
+      - "[0-9]*.[0-9]*.[0-9]*"
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  windows-installer:
+    name: Windows installer
+    runs-on: windows-latest
+    timeout-minutes: 45
+    defaults:
+      run:
+        shell: pwsh
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Audit runner image
+        run: |
+          "ImageOS=$env:ImageOS"
+          "ImageVersion=$env:ImageVersion"
+          Get-ComputerInfo | Select-Object WindowsProductName, WindowsVersion, OsHardwareAbstractionLayer
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.26.2"
+          check-latest: true
+          cache: true
+
+      - name: Set up MSYS2
+        uses: msys2/setup-msys2@v2
+        with:
+          update: true
+          path-type: inherit
+          install: >-
+            mingw-w64-x86_64-gcc
+
+      - name: Set up Zig
+        uses: goto-bus-stop/setup-zig@v2
+        with:
+          version: "0.17.0-dev.215+8c5542bd3"
+
+      - name: Install Windows build tools
+        run: |
+          choco install llvm innosetup --yes --no-progress
+          $env:GITHUB_PATH | ForEach-Object {
+            Add-Content $_ "C:\Program Files\LLVM\bin"
+            Add-Content $_ "C:\msys64\mingw64\bin"
+            Add-Content $_ "C:\Program Files (x86)\Inno Setup 6"
+          }
+
+      - name: Set up GoReleaser
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          install-only: true
+          distribution: goreleaser
+          version: latest
+
+      - name: Audit toolchain
+        run: |
+          go version
+          goreleaser --version
+          clang --version
+          x86_64-w64-mingw32-gcc --version
+          zig version
+          iscc /?
+
+      - name: Test
+        run: |
+          New-Item -ItemType Directory -Force build\.cache\gobuildtmp, build\.cache\gocache | Out-Null
+          $env:TEMP=(Resolve-Path build\.cache\gobuildtmp).Path
+          $env:TMP=$env:TEMP
+          $env:GOTMPDIR=$env:TEMP
+          $env:GOCACHE=(Resolve-Path build\.cache\gocache).Path
+          $env:CGO_ENABLED='1'
+          $env:CC='clang --target=x86_64-w64-windows-gnu'
+          $env:CXX='clang++ --target=x86_64-w64-windows-gnu'
+          $env:GOFLAGS='-ldflags=-extld=x86_64-w64-mingw32-gcc'
+          go test ./...
+
+      - name: Check GoReleaser config
+        run: goreleaser check --config build\release\goreleaser-win-all.yaml
+
+      - name: Build Windows binaries
+        run: |
+          New-Item -ItemType Directory -Force build\.cache\gobuildtmp, build\.cache\gocache | Out-Null
+          $env:TEMP=(Resolve-Path build\.cache\gobuildtmp).Path
+          $env:TMP=$env:TEMP
+          $env:GOTMPDIR=$env:TEMP
+          $env:GOCACHE=(Resolve-Path build\.cache\gocache).Path
+          goreleaser build --snapshot --clean --config build\release\goreleaser-win-all.yaml
+
+      - name: Build Windows installer
+        run: .\build\scripts\build-installer.ps1
+
+      - name: Upload Windows artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: musicalc-windows
+          if-no-files-found: error
+          retention-days: 14
+          path: |
+            build/dist/musicalc_x64.exe
+            build/dist/musicalc_arm64.exe
+            build/dist/installer/*.exe
+            build/dist/artifacts.json
+            build/dist/metadata.json
+
+  linux-amd64-packages:
+    name: Linux AMD64 packages
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Audit runner image
+        run: |
+          echo "ImageOS=${ImageOS}"
+          echo "ImageVersion=${ImageVersion}"
+          lsb_release -a
+          uname -a
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.26.2"
+          check-latest: true
+          cache: true
+
+      - name: Install Linux AMD64 dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install --yes --no-install-recommends \
+            gcc \
+            g++ \
+            libasound2-dev \
+            libgl1-mesa-dev \
+            pkg-config \
+            rpm \
+            xorg-dev
+
+      - name: Set up GoReleaser
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          install-only: true
+          distribution: goreleaser
+          version: latest
+
+      - name: Audit toolchain
+        run: |
+          go version
+          goreleaser --version
+          gcc --version
+          g++ --version
+          pkg-config --version
+          rpm --version
+
+      - name: Test
+        run: go test ./...
+
+      - name: Check GoReleaser config
+        run: goreleaser check --config build/release/goreleaser-linux-amd64.yaml
+
+      - name: Build Linux AMD64 packages
+        run: goreleaser release --snapshot --clean --config build/release/goreleaser-linux-amd64.yaml --skip=publish
+
+      - name: Upload Linux AMD64 artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: musicalc-linux-amd64
+          if-no-files-found: error
+          retention-days: 14
+          path: |
+            build/dist/*.tar.gz
+            build/dist/*.deb
+            build/dist/*.rpm
+            build/dist/artifacts.json
+            build/dist/metadata.json
+
+  linux-arm64-packages:
+    name: Linux ARM64 packages
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Audit runner image
+        run: |
+          echo "ImageOS=${ImageOS}"
+          echo "ImageVersion=${ImageVersion}"
+          lsb_release -a
+          uname -a
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.26.2"
+          check-latest: true
+          cache: true
+
+      - name: Install Linux ARM64 cross dependencies
+        run: |
+          sudo dpkg --add-architecture arm64
+          sudo apt-get update
+          sudo apt-get install --yes --no-install-recommends \
+            gcc-aarch64-linux-gnu \
+            g++-aarch64-linux-gnu \
+            libasound2-dev:arm64 \
+            libgl1-mesa-dev:arm64 \
+            libxcursor-dev:arm64 \
+            libxi-dev:arm64 \
+            libxinerama-dev:arm64 \
+            libxrandr-dev:arm64 \
+            libx11-dev:arm64 \
+            libxxf86vm-dev:arm64 \
+            pkg-config \
+            rpm
+
+      - name: Set up GoReleaser
+        uses: goreleaser/goreleaser-action@v6
+        with:
+          install-only: true
+          distribution: goreleaser
+          version: latest
+
+      - name: Audit toolchain
+        run: |
+          go version
+          goreleaser --version
+          aarch64-linux-gnu-gcc --version
+          aarch64-linux-gnu-g++ --version
+          pkg-config --version
+          rpm --version
+
+      - name: Check GoReleaser config
+        run: goreleaser check --config build/release/goreleaser-linux-arm64.yaml
+
+      - name: Build Linux ARM64 packages
+        run: goreleaser release --snapshot --clean --config build/release/goreleaser-linux-arm64.yaml --skip=publish
+
+      - name: Upload Linux ARM64 artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: musicalc-linux-arm64
+          if-no-files-found: error
+          retention-days: 14
+          path: |
+            build/dist/*.tar.gz
+            build/dist/*.deb
+            build/dist/*.rpm
+            build/dist/artifacts.json
+            build/dist/metadata.json
diff --git a/.gitignore b/.gitignore
index 6a14833..3b45e2e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,10 +17,11 @@ musicalc
 coverage.*
 *.coverprofile
 profile.cov
-installer
-installer/*
-dist
-dist/*
+/installer/
+/dist/
+build/dist/
+build/.cache/
+build/installer/out/
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
@@ -38,7 +39,9 @@ go.work.sum
 
 musicalc_linux_*
 musicalc_win_*
-musicalc.apk
-
 fyne-cross
-fyne-cross/*
\ No newline at end of file
+fyne-cross/*
+
+# Legacy local Go build/cache directories
+.gobuildtmp/
+.gocache/
diff --git a/README-INSTALLER.md b/README-INSTALLER.md
deleted file mode 100644
index f9c3761..0000000
--- a/README-INSTALLER.md
+++ /dev/null
@@ -1,108 +0,0 @@
-# Creating Windows Installer
-
-## Prerequisites
-
-1. **Inno Setup**: Download and install from https://jrsoftware.org/isdl.php
-
-## Building the Installer
-
-1. **Build the application first:**
-   ```powershell
-   go build -ldflags="-s -w" -o musicalc.exe
-   ```
-
-2. **Open Inno Setup Compiler**
-
-3. **Open the script:**
-   - File → Open → Select `musicalc.iss`
-
-4. **Compile:**
-   - Build → Compile (or press F9)
-
-5. **Output:**
-   - Installer will be created in `installer/MusiCalc-Setup-1.0.0.exe`
-
-## Customization
-
-Edit `musicalc.iss` to change:
-- `MyAppVersion` - Application version number
-- `MyAppPublisher` - Your name/company
-- `MyAppURL` - Your website/repository URL
-- `AppId` - Unique GUID (keep as-is or generate new one)
-
-## Testing
-
-1. Run the generated installer: `installer/MusiCalc-Setup-1.0.0.exe`
-2. Install to default location or custom directory
-3. Verify desktop shortcut (if selected)
-4. Test the application runs correctly
-5. Uninstall via Windows Settings → Apps
-
-## Distribution
-
-The installer file (`MusiCalc-Setup-1.0.0.exe`) is a single executable that can be distributed to users. It includes:
-- Application executable
-- App icon
-- Start menu shortcuts
-- Optional desktop shortcut
-- Uninstaller
-
-# Creating Linux Packages and Tarballs
-
-GoReleaser automates the creation of `.deb`, `.rpm`, and `.tar.gz` packages for distribution.
-
-1. **Install GoReleaser**
-   ```bash
-   go install github.com/goreleaser/goreleaser/v2@latest
-   ```
-
-2. **Install Package Dependencies*
-   See [Build Instructions](README-BUILD.md).
-
-3. **Building packages with goreleaser**
-
-   For Linux AMD64:
-
-   ```bash
-   goreleaser check --config .goreleaser-linux-amd64.yaml
-   # for snapshot
-   goreleaser release --snapshot --clean --config .goreleaser-linux-amd64.yaml
-   # for release
-   goreleaser release --clean --config .goreleaser-linux-amd64.yaml --skip=publish
-   ```
-
-   For Linux ARM64:
-
-   ```bash
-   goreleaser check --config .goreleaser-linux-arm64.yaml
-   # for snapshot
-   goreleaser release --snapshot --clean --config .goreleaser-linux-arm64.yaml
-   # for release
-   goreleaser release --clean --config .goreleaser-linux-arm64.yaml --skip=publish
-   ```
-
-   For Windows AMD64/ARM64:
-   ```bash
-   goreleaser check --config .goreleaser-cross-win.yaml
-   # for snapshot
-   goreleaser release --snapshot --clean --config .goreleaser-cross-win.yaml
-   # for release
-   goreleaser release --clean --config .goreleaser-cross-win.yaml --skip=publish
-   ```
-
-
-   This creates packages in the `dist/` directory without requiring a Git tag.
-
-4. **Create a release (requires Git tag)**
-   ```bash
-   # Create and push a version tag
-   git tag -a v0.1.0 -m "Release version 0.1.0"
-   git push origin v0.1.0
-   
-   # Build and publish release using the gorelease release commands above
-   ```
-
-**Generated artifacts**:
-- `.tar.gz` archive with binary, install script, icon, and desktop entry
-- `.deb` package for Debian/Ubuntu
-- `.rpm` package for Fedora/RHEL
diff --git a/README.md b/README.md
index e22eb28..3f68f38 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 A cross-platform music calculator application built with Go and Fyne. Provides real-time calculators for tempo, pitch, sampling, and time-stretching operations commonly used in music production and audio engineering.
 
-This project is heavily inspired by [MusicMath](https://dev.laurentcolson.com/musicmath.html), an excellent tool currently exclusive to the Apple ecosystem. This version aims to bring that same utility to Windows, Linux and Android, with a simpler look and feel. For macOS users looking for a polished commercial solution, MusicMath is highly recommended. MusicMath has long been a reference tool for music-related calculations, and this project draws inspiration from that work.
+This project is heavily inspired by [MusicMath](https://dev.laurentcolson.com/musicmath.html), an excellent tool currently exclusive to the Apple ecosystem. This version aims to bring that same utility to Windows and Linux, with a simpler look and feel. For macOS users looking for a polished commercial solution, MusicMath is highly recommended. MusicMath has long been a reference tool for music-related calculations, and this project draws inspiration from that work.
 
 <table style="width: 100%;" border="0">
   <tr>
@@ -96,16 +96,16 @@ This application is provided for informational purposes only and is not guarante
 ## Documentation
 
 - **[User Guide](README-USERGUIDE.md)** - How to use each calculator
-- **[Build Instructions](README-BUILD.md)** - How to build from source on Windows, Linux, and macOS
-- **[Creating Installers](README-INSTALLER.md)** - Creating Windows installers and Linux packages
-- **[Icon Resources](README-ICONS.md)** - Icon specifications and resources
-- **[Test Instructions](README-TESTS.md)** - How to run tests
+- **[Build Instructions](build/docs/README-BUILD.md)** - How to build from source on Windows, Linux, and macOS
+- **[Creating Installers](build/docs/README-INSTALLER.md)** - Creating Windows installers and Linux packages
+- **[Icon Resources](build/docs/README-ICONS.md)** - Icon specifications and resources
+- **[Test Instructions](build/docs/README-TESTS.md)** - How to run tests
 
 ## Requirements
 
-- Go 1.24.5 or later
+- Go 1.26.2 or later
 - GCC/MinGW (for CGO support on Windows)
-- Fyne v2.7.1
+- Fyne v2.7.3
 
 ## License
 
diff --git a/VERSION b/VERSION
deleted file mode 100644
index 7fc2521..0000000
--- a/VERSION
+++ /dev/null
@@ -1 +0,0 @@
-0.8.6
diff --git a/build-android.sh b/build-android.sh
deleted file mode 100755
index 0c55488..0000000
--- a/build-android.sh
+++ /dev/null
@@ -1,86 +0,0 @@
-#!/bin/bash
-
-# Exit immediately if a command exits with a non-zero status
-set -e
-
-# --- 1, 2, 3) Check Environment Variables ---
-check_env_var() {
-    if [ -z "${!1}" ]; then
-        echo "error: $1 is not set."
-        exit 1
-    fi
-    if [ ! -d "${!1}" ]; then
-        echo "error: $1 path does not exist: ${!1}"
-        exit 1
-    fi
-}
-
-check_env_var "ANDROID_NDK_HOME"
-check_env_var "ANDROID_HOME"
-check_env_var "ANDROID_SDK_ROOT"
-
-# --- 4, 5) Locate zipalign ---
-# Priority: 1. System Path, 2. build-tools (standard), 3. cmdline-tools (user request)
-if command -v zipalign >/dev/null 2>&1; then
-    ZIPALIGN_PATH=$(command -v zipalign)
-else
-    # Search for the highest version available in build-tools (Standard location)
-    # or the user-specified cmdline-tools path
-    SEARCH_PATHS=(
-        "${ANDROID_HOME}/build-tools"
-        "${ANDROID_HOME}/cmdline-tools/latest/bin"
-    )
-    
-    ZIPALIGN_PATH=$(find "${SEARCH_PATHS[@]}" -name zipalign -type f 2>/dev/null | sort -V | tail -n 1)
-fi
-
-if [ -z "$ZIPALIGN_PATH" ] || [ ! -x "$ZIPALIGN_PATH" ]; then
-    echo "error: zipalign not found in PATH or Android SDK structure."
-    exit 1
-fi
-
-echo "Using zipalign: $ZIPALIGN_PATH"
-
-# --- Build Configuration ---
-export CGO_ENABLED=1
-export CGO_CFLAGS="-O3 -flto=auto -march=armv8-a+crc+crypto"
-# Force 16KB Page Alignment for Android 15+ compatibility
-export CGO_LDFLAGS="-O3 -flto=auto -Wl,-z,max-page-size=16384 -Wl,-z,common-page-size=16384"
-export GOFLAGS="-ldflags=-s -w"
-
-git pull && git checkout -- go.mod && git fetch --tags --force
-
-# --- Execution ---
-echo "Building APK..."
-fyne package --os android/arm64 --id com.github.bzeiss --release -icon icons/appicon.png
-
-# Ensure dist exists
-mkdir -p dist
-
-# Aligning
-echo "Aligning APK to 16KB boundary..."
-mv musicalc.apk dist/musicalc-unaligned.apk
-"$ZIPALIGN_PATH" -f -v -P 16 4 dist/musicalc-unaligned.apk dist/musicalc.apk
-
-# Verify alignment
-"$ZIPALIGN_PATH" -c -v -P 16 4 dist/musicalc.apk
-
-# --- 6) Smarter Alignment Check ---
-echo "Verifying 16KB ($2^{14}$) alignment of internal shared libraries..."
-cd dist
-unzip -p musicalc.apk lib/arm64-v8a/libmusicalc.so > tmp_lib.so
-
-# Extraction of alignment value using awk
-# We check the 'align' value of the LOAD segments
-ALIGNMENT=$(objdump -p tmp_lib.so | grep "LOAD" | awk '{print $NF}' | head -n 1)
-
-if [[ "$ALIGNMENT" == *"2**14"* ]] || [[ "$ALIGNMENT" == *"0x4000"* ]]; then
-    echo "SUCCESS: Library is correctly aligned to 16KB ($ALIGNMENT)."
-else
-    echo "FAILURE: Library alignment is $ALIGNMENT, expected 2**14 (16384)."
-    rm tmp_lib.so
-    exit 1
-fi
-
-rm tmp_lib.so
-echo "Build and Verification Complete: dist/musicalc.apk"
\ No newline at end of file
diff --git a/build-win.ps1 b/build-win.ps1
deleted file mode 100644
index 849b7be..0000000
--- a/build-win.ps1
+++ /dev/null
@@ -1,4 +0,0 @@
-$env:CGO_FLAGS="-O3 -flto=auto -march=x86-64-v3"
-$env:CGO_LDFLAGS="-O3 -flto=auto"
-$env:CGO_ENABLED=1
-go build -ldflags="-s -w" -o musicalc.exe
diff --git a/README-BUILD.md b/build/docs/README-BUILD.md
similarity index 64%
rename from README-BUILD.md
rename to build/docs/README-BUILD.md
index 9768ff3..587d3d2 100644
--- a/README-BUILD.md
+++ b/build/docs/README-BUILD.md
@@ -10,9 +10,10 @@
    cd musicalc
    ```
 
-2. **Install MSYS2** (provides MinGW GCC compiler required for Fyne)
+2. **Install LLVM and MSYS2** (provides clang plus the MinGW linker required for Fyne)
    ```powershell
    winget install -e --id MSYS2.MSYS2
+   winget install -e --id LLVM.LLVM
    ```
 
 3. **Install GCC via MSYS2**
@@ -32,11 +33,12 @@
    - Add new entry: `C:\msys64\mingw64\bin`
    - Click OK and restart your terminal
 
-5. **Verify GCC installation**
+5. **Verify compiler installation**
    ```powershell
-   gcc --version
+   clang --version
+   x86_64-w64-mingw32-gcc --version
    ```
-   Should output GCC version information
+   Both commands should output version information.
 
 6. **Install Go dependencies**
    ```powershell
@@ -45,19 +47,13 @@
 
 7. **Build the application**
    ```powershell
-   $env:CGO_FLAGS="-O3 -flto=auto -march=x86-64-v3"
-   $env:CGO_LDFLAGS="-O3 -flto=auto"
-   $env:CGO_ENABLED=1
-   go build -ldflags="-s -w" -o musicalc.exe
-   ```
-   or for a production build without the console:
-   ```powershell
-   go build -ldflags="-s -w -H=windowsgui" -o musicalc.exe
+   .\build\scripts\build-win.ps1
    ```
+   The script injects the application version from the current Git tag. If the current commit is not exactly tagged, it injects a local dev version derived from the latest tag and commit.
 
 8. **Run the application**
    ```powershell
-   .\musicalc.exe
+   .\build\dist\musicalc.exe
    ```
 
 ## Linux
@@ -90,8 +86,9 @@
 
 4. **Windows ARM64 Cross-compilation support (requires a more recent Ubuntu Server version for building)**
    - Download Zig from: https://ziglang.org/download/
-   - Put zig somewere into your environment PATH
-   - test by calling "zig" and "zig c++"
+   - Put `zig` somewhere into your environment `PATH`
+   - Test by calling `zig` and `zig c++`
+   - The Windows GoReleaser config stores Zig cache data under `build/.cache/zig-global` and `build/.cache/zig-local` so build-generated files stay inside the project tree.
 
 5. **Install Go dependencies**
    ```bash
@@ -100,6 +97,7 @@
 
 6. **Build the application for Linux AMD64**
    ```bash
+   mkdir -p build/dist
    export CGO_CFLAGS="-O3 -flto=auto -march=x86-64-v3"
    export CGO_LDFLAGS="-O3 -flto=auto"
    export CGO_ENABLED=1
@@ -107,10 +105,12 @@
    export CXX=g++
    export GOOS=linux
    export GOARCH=amd64
-   go build -ldflags="-s -w" -o musicalc_linux_amd64
+   VERSION="$(git describe --tags --exact-match 2>/dev/null || echo dev-$(git rev-parse --short HEAD))"
+   go build -ldflags="-s -w -X main.version=${VERSION}" -o build/dist/musicalc_linux_amd64
    ```
 7. **Build the application for Linux ARM64**
    ```bash
+   mkdir -p build/dist
    export CGO_CFLAGS="-O3 -flto=auto -march=armv8.4-a+crc+crypto -fomit-frame-pointer"
    export CGO_LDFLAGS="-O3 -flto=auto -Wl,--gc-sections"
    export CGO_ENABLED=1
@@ -118,11 +118,13 @@
    export PKG_CONFIG_PATH=/usr/lib/aarch64-linux-gnu/pkgconfig:/usr/share/pkgconfig
    export GOOS=linux
    export GOARCH=arm64
-   go build -ldflags="-s -w" -o musicalc_linux_arm64
+   VERSION="$(git describe --tags --exact-match 2>/dev/null || echo dev-$(git rev-parse --short HEAD))"
+   go build -ldflags="-s -w -X main.version=${VERSION}" -o build/dist/musicalc_linux_arm64
    ```
 
 8. **Build the application for Windows AMD64**
    ```bash
+   mkdir -p build/dist
    export CGO_CFLAGS="-O3 -flto=auto -march=x86-64-v3 -m64"
    export CGO_LDFLAGS="-O3 -flto=auto"
    export CGO_ENABLED=1
@@ -130,46 +132,33 @@
    export CXX=x86_64-w64-mingw32-g++
    export GOOS=windows
    export GOARCH=amd64
-   go build -ldflags="-s -w" -o musicalc_win_amd64
+   VERSION="$(git describe --tags --exact-match 2>/dev/null || echo dev-$(git rev-parse --short HEAD))"
+   go build -ldflags="-s -w -X main.version=${VERSION}" -o build/dist/musicalc_win_amd64.exe
    ```
 
 9. **Build the application for Windows ARM64**
    ```bash
+   mkdir -p build/dist
    export CGO_CFLAGS="-O3 -mcpu=oryon_1 -fomit-frame-pointer"
    export CGO_LDFLAGS="-O3"
    export CGO_ENABLED=1
    export CC="zig cc -target aarch64-windows-gnu"
    export CXX="zig c++ -target aarch64-windows-gnu"
+   export ZIG_GLOBAL_CACHE_DIR=build/.cache/zig-global
+   export ZIG_LOCAL_CACHE_DIR=build/.cache/zig-local
    export GOOS=windows
    export GOARCH=arm64
-   go build -ldflags="-s -w" -o musicalc_win_arm64
-   ```
-
-10. **Build the application for Android ARM64**
-   ```bash
-   export ANDROID_NDK_HOME=/path/to/your/android-ndk
-   export ANDROID_HOME=/path/to/your/android-sdk
-   export ANDROID_SDK_ROOT=$ANDROID_HOME
-   export PATH=$PATH:${ANDROID_HOME}/cmdline-tools/latest/bin
-   ./build-android.sh
+   VERSION="$(git describe --tags --exact-match 2>/dev/null || echo dev-$(git rev-parse --short HEAD))"
+   go build -ldflags="-s -w -X main.version=${VERSION}" -o build/dist/musicalc_win_arm64.exe
    ```
 
-   For the Android SDK and NDK, you can use the Android Studio SDK Manager to install them.
+10. **Run the application**
    ```bash
-   sdkmanager --licenses # accept all licenses
-   sdkmanager "platform-tools" "build-tools;36.1.0" "platforms;android-36" # choose the most recent version
-   ```
-
-11. **Run the application**
-   ```bash
-   ./musicalc_xxx
+   ./build/dist/musicalc_xxx
    ```
 
 ## Requirements
 
-- Go 1.24.5 or later
-- GCC/MinGW (for CGO support on Windows)
-- Fyne v2.7.1
-
+- Go 1.26.2 or later
 - GCC/MinGW (for CGO support on Windows)
-- Fyne v2.7.1
+- Fyne v2.7.3
diff --git a/README-ICONS.md b/build/docs/README-ICONS.md
similarity index 100%
rename from README-ICONS.md
rename to build/docs/README-ICONS.md
diff --git a/build/docs/README-INSTALLER.md b/build/docs/README-INSTALLER.md
new file mode 100644
index 0000000..76fb8f5
--- /dev/null
+++ b/build/docs/README-INSTALLER.md
@@ -0,0 +1,116 @@
+# Creating Windows Installer
+
+## Prerequisites
+
+1. **Inno Setup**: Download and install from https://jrsoftware.org/isdl.php
+
+## Building the Installer
+
+1. **Build the application first:**
+   ```powershell
+   .\build\scripts\build-win.ps1
+   ```
+
+2. **Open Inno Setup Compiler**
+
+3. **Compile the installer:**
+   ```powershell
+   .\build\scripts\build-installer.ps1
+   ```
+
+   For a release installer, first check out the exact version tag and then run:
+   ```powershell
+   .\build\scripts\build-installer.ps1 -Release
+   ```
+
+4. **Output:**
+   - Installer will be created in `build/dist/installer/`
+
+## Customization
+
+Edit `build/installer/musicalc.iss` to change:
+- `MyAppPublisher` - Your name/company
+- `MyAppURL` - Your website/repository URL
+- `AppId` - Unique GUID (keep as-is or generate new one)
+
+## Testing
+
+1. Run the generated installer from `build/dist/installer/`
+2. Install to default location or custom directory
+3. Verify desktop shortcut (if selected)
+4. Test the application runs correctly
+5. Uninstall via Windows Settings > Apps
+
+## Distribution
+
+The installer file is a single executable that can be distributed to users. It includes:
+- Application executable
+- App icon
+- Start menu shortcuts
+- Optional desktop shortcut
+- Uninstaller
+
+# Creating Linux Packages and Tarballs
+
+GoReleaser automates the creation of `.deb`, `.rpm`, and `.tar.gz` packages for distribution.
+
+1. **Install GoReleaser**
+   ```bash
+   go install github.com/goreleaser/goreleaser/v2@latest
+   ```
+
+2. **Install Package Dependencies**
+   See [Build Instructions](README-BUILD.md).
+
+3. **Building packages with GoReleaser**
+
+   For Linux AMD64:
+
+   ```bash
+   goreleaser check --config build/release/goreleaser-linux-amd64.yaml
+   # for snapshot
+   goreleaser release --snapshot --clean --config build/release/goreleaser-linux-amd64.yaml
+   # for release
+   goreleaser release --clean --config build/release/goreleaser-linux-amd64.yaml --skip=publish
+   ```
+
+   For Linux ARM64:
+
+   ```bash
+   goreleaser check --config build/release/goreleaser-linux-arm64.yaml
+   # for snapshot
+   goreleaser release --snapshot --clean --config build/release/goreleaser-linux-arm64.yaml
+   # for release
+   goreleaser release --clean --config build/release/goreleaser-linux-arm64.yaml --skip=publish
+   ```
+
+   For Windows AMD64/ARM64:
+   ```bash
+   goreleaser check --config build/release/goreleaser-win-all.yaml
+   # for snapshot
+   goreleaser release --snapshot --clean --config build/release/goreleaser-win-all.yaml
+   # for release
+   goreleaser release --clean --config build/release/goreleaser-win-all.yaml --skip=publish
+   ```
+
+   The Windows ARM64 build uses Zig for cross-compilation. The GoReleaser config redirects Zig cache files to `build/.cache/zig-global` and `build/.cache/zig-local`.
+
+   Snapshot builds create packages in the `build/dist/` directory without requiring an exact Git tag. Release builds must be run from an exact version tag.
+
+4. **Create a release (requires Git tag)**
+   ```bash
+   # Create and push tags manually; release tooling does not create or push tags.
+   git tag -a 0.1.0 -m "Release 0.1.0"
+   git push origin 0.1.0
+
+   # Validate the current exact tag and all GoReleaser configs.
+   python utils/release.py --check-only
+
+   # Run one release config. Publishing is skipped unless --publish is supplied.
+   python utils/release.py --release --config build/release/goreleaser-linux-amd64.yaml
+   ```
+
+**Generated artifacts**:
+- `.tar.gz` archive with binary, install script, icon, and desktop entry
+- `.deb` package for Debian/Ubuntu
+- `.rpm` package for Fedora/RHEL
diff --git a/README-TESTS.md b/build/docs/README-TESTS.md
similarity index 100%
rename from README-TESTS.md
rename to build/docs/README-TESTS.md
diff --git a/musicalc.iss b/build/installer/musicalc.iss
similarity index 76%
rename from musicalc.iss
rename to build/installer/musicalc.iss
index 6c22f5c..442e8e5 100644
--- a/musicalc.iss
+++ b/build/installer/musicalc.iss
@@ -2,7 +2,9 @@
 ; Music Calculator Application - Universal Architecture Version
 
 #define MyAppName "MusiCalc"
-#define MyAppVersion "0.8.6"
+#ifndef MyAppVersion
+  #error MyAppVersion must be supplied by the build command, for example: ISCC.exe /DMyAppVersion=X.Y.Z build\installer\musicalc.iss
+#endif
 #define MyAppPublisher "B. Zeiss"
 #define MyAppURL "https://github.com/bzeiss/musicalc"
 #define MyAppExeName "musicalc.exe"
@@ -19,9 +21,9 @@ AppUpdatesURL={#MyAppURL}
 DefaultDirName={autopf}\{#MyAppName}
 DisableProgramGroupPage=yes
 ; PrivilegesRequired=lowest
-OutputDir=installer
+OutputDir=..\dist\installer
 OutputBaseFilename=musicalc-setup-{#MyAppVersion}
-SetupIconFile=icons\appicon.ico
+SetupIconFile=..\..\icons\appicon.ico
 Compression=lzma
 SolidCompression=yes
 WizardStyle=modern
@@ -42,14 +44,14 @@ Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{
 
 [Files]
 ; 1. Install AMD64 version on x64 systems
-Source: "dist\musicalc_x64.exe"; DestDir: "{app}"; DestName: "{#MyAppExeName}"; Check: IsX64; Flags: 64bit ignoreversion
+Source: "..\dist\musicalc_x64.exe"; DestDir: "{app}"; DestName: "{#MyAppExeName}"; Check: IsX64; Flags: 64bit ignoreversion
 
 ; 2. Install ARM64 version on ARM64 systems
-Source: "dist\musicalc_arm64.exe"; DestDir: "{app}"; DestName: "{#MyAppExeName}"; Check: IsArm64; Flags: 64bit ignoreversion
+Source: "..\dist\musicalc_arm64.exe"; DestDir: "{app}"; DestName: "{#MyAppExeName}"; Check: IsArm64; Flags: 64bit ignoreversion
 
 ; Common files
-Source: "icons\appicon.ico"; DestDir: "{app}"; Flags: ignoreversion
-Source: "icons\appicon.png"; DestDir: "{app}\icons"; Flags: ignoreversion
+Source: "..\..\icons\appicon.ico"; DestDir: "{app}"; Flags: ignoreversion
+Source: "..\..\icons\appicon.png"; DestDir: "{app}\icons"; Flags: ignoreversion
 
 [Icons]
 Name: "{autoprograms}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; IconFilename: "{app}\appicon.ico"
@@ -68,4 +70,4 @@ end;
 function IsX64: Boolean;
 begin
   Result := (ProcessorArchitecture = paX64);
-end;
\ No newline at end of file
+end;
diff --git a/musicalc-pkg.desktop b/build/packaging/musicalc-pkg.desktop
similarity index 83%
rename from musicalc-pkg.desktop
rename to build/packaging/musicalc-pkg.desktop
index f030e4c..7484dd6 100644
--- a/musicalc-pkg.desktop
+++ b/build/packaging/musicalc-pkg.desktop
@@ -6,4 +6,4 @@ Exec=/usr/bin/musicalc
 Icon=musicalc
 Terminal=false
 Categories=Utility;Audio;
-StartupWMClass=MusiCalc v0.8.6
+StartupWMClass=com.musicalc
diff --git a/musicalc.desktop b/build/packaging/musicalc.desktop
similarity index 84%
rename from musicalc.desktop
rename to build/packaging/musicalc.desktop
index b6ee087..d4d35d4 100644
--- a/musicalc.desktop
+++ b/build/packaging/musicalc.desktop
@@ -6,4 +6,4 @@ Exec=/usr/local/bin/musicalc
 Icon=musicalc
 Terminal=false
 Categories=Utility;Audio;
-StartupWMClass=MusiCalc v0.8.6
+StartupWMClass=com.musicalc
diff --git a/.goreleaser-linux-amd64.yaml b/build/release/goreleaser-linux-amd64.yaml
similarity index 80%
rename from .goreleaser-linux-amd64.yaml
rename to build/release/goreleaser-linux-amd64.yaml
index b12ff2f..d292511 100644
--- a/.goreleaser-linux-amd64.yaml
+++ b/build/release/goreleaser-linux-amd64.yaml
@@ -1,10 +1,6 @@
 version: 2
 project_name: musicalc
-
-before:
-  hooks:
-    - git pull && git checkout -- go.mod && git fetch --tags --force
-#    - go mod tidy
+dist: build/dist
 
 builds:
   - id: linux-amd64
@@ -20,15 +16,17 @@ builds:
       - amd64
     goamd64: [v3]
     ldflags:
-      - -s -w
+      - -s -w -X main.version={{ .Version }}
   
 # This creates the .tar.gz bundle
 archives:
   - files:
-      - src: "install.sh"
+      - src: "build/scripts/install.sh"
+        dst: "install.sh"
       - src: "icons/appicon.png"
         dst: "icon.png"
-      - src: "musicalc.desktop"
+      - src: "build/packaging/musicalc.desktop"
+        dst: "musicalc.desktop"
 
 # This creates the .deb and .rpm "Installers"
 nfpms:
@@ -46,5 +44,5 @@ nfpms:
         dst: /usr/share/icons/hicolor/512x512/apps/musicalc.png
       
       # This creates the Start Menu entry automatically (uses /usr/bin path)
-      - src: musicalc-pkg.desktop
+      - src: build/packaging/musicalc-pkg.desktop
         dst: /usr/share/applications/musicalc.desktop
diff --git a/.goreleaser-linux-arm64.yaml b/build/release/goreleaser-linux-arm64.yaml
similarity index 81%
rename from .goreleaser-linux-arm64.yaml
rename to build/release/goreleaser-linux-arm64.yaml
index ca10cd0..f8b69b0 100644
--- a/.goreleaser-linux-arm64.yaml
+++ b/build/release/goreleaser-linux-arm64.yaml
@@ -1,10 +1,6 @@
 version: 2
 project_name: musicalc
-
-before:
-  hooks:
-    - git pull && git checkout -- go.mod && git fetch --tags --force
-#    - go mod tidy
+dist: build/dist
 
 builds:
   - id: linux-arm64
@@ -20,15 +16,17 @@ builds:
     goarch:
       - arm64
     ldflags:
-      - -s -w      
+      - -s -w -X main.version={{ .Version }}
 
 # This creates the .tar.gz bundle
 archives:
   - files:
-      - src: "install.sh"
+      - src: "build/scripts/install.sh"
+        dst: "install.sh"
       - src: "icons/appicon.png"
         dst: "icon.png"
-      - src: "musicalc.desktop"
+      - src: "build/packaging/musicalc.desktop"
+        dst: "musicalc.desktop"
 
 # This creates the .deb and .rpm "Installers"
 nfpms:
@@ -46,5 +44,5 @@ nfpms:
         dst: /usr/share/icons/hicolor/512x512/apps/musicalc.png
       
       # This creates the Start Menu entry automatically (uses /usr/bin path)
-      - src: musicalc-pkg.desktop
+      - src: build/packaging/musicalc-pkg.desktop
         dst: /usr/share/applications/musicalc.desktop
diff --git a/.goreleaser-win-all.yaml b/build/release/goreleaser-win-all.yaml
similarity index 65%
rename from .goreleaser-win-all.yaml
rename to build/release/goreleaser-win-all.yaml
index c39f416..1ae59d3 100644
--- a/.goreleaser-win-all.yaml
+++ b/build/release/goreleaser-win-all.yaml
@@ -1,24 +1,20 @@
 version: 2
 project_name: musicalc
-
-before:
-  hooks:
-    - git pull && git checkout -- go.mod && git fetch --tags --force
-#    - go mod tidy
+dist: build/dist
 
 builds:
   - id: win-amd64
     env:
       - CGO_ENABLED=1
-      - CC=x86_64-w64-mingw32-gcc
-      - CXX=x86_64-w64-mingw32-g++
-      - CGO_CFLAGS=-O3 -flto=auto -march=x86-64-v3 -m64
-      - CGO_LDFLAGS=-O3 -flto=auto
+      - CC=clang --target=x86_64-w64-windows-gnu
+      - CXX=clang++ --target=x86_64-w64-windows-gnu
+      - CGO_CFLAGS=-O3 -march=x86-64-v3
+      - CGO_LDFLAGS=-O3
     goos: [windows]
     goarch: [amd64]
     goamd64: [v3]
     ldflags:
-      - -s -w -H=windowsgui
+      - -s -w -H=windowsgui -extld=x86_64-w64-mingw32-gcc -X main.version={{ .Version }}
     binary: musicalc_x64
     # This keeps the binary at the top level of the dist folder
     no_unique_dist_dir: true
@@ -28,12 +24,14 @@ builds:
       - CGO_ENABLED=1
       - CC=zig cc -target aarch64-windows-gnu
       - CXX=zig c++ -target aarch64-windows-gnu
+      - ZIG_GLOBAL_CACHE_DIR=build/.cache/zig-global
+      - ZIG_LOCAL_CACHE_DIR=build/.cache/zig-local
       - CGO_CFLAGS=-O3 -mcpu=oryon_1 -fomit-frame-pointer
       - CGO_LDFLAGS=-O3
     goos: [windows]
     goarch: [arm64]
     ldflags:
-      - -s -w -H=windowsgui
+      - -s -w -H=windowsgui -X main.version={{ .Version }}
     binary: musicalc_arm64
     no_unique_dist_dir: true
 
@@ -44,4 +42,4 @@ builds:
 #     name_template: "{{ .Binary }}"
 #     # This prevents GoReleaser from adding default README/LICENSE files
 #     files:
-#       - none*
\ No newline at end of file
+#       - none*
diff --git a/build/scripts/build-installer.ps1 b/build/scripts/build-installer.ps1
new file mode 100644
index 0000000..6a76570
--- /dev/null
+++ b/build/scripts/build-installer.ps1
@@ -0,0 +1,42 @@
+param(
+    [switch]$Release
+)
+
+$ErrorActionPreference = "Stop"
+
+$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$projectRoot = Resolve-Path (Join-Path $scriptDir "..\..")
+$installerScript = Join-Path $projectRoot "build\installer\musicalc.iss"
+
+Push-Location $projectRoot
+try {
+    $version = git describe --tags --exact-match 2>$null
+    if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($version)) {
+        if ($Release) {
+            throw "Release installer builds require HEAD to be exactly on a version tag."
+        }
+
+        $latestTag = git describe --tags --abbrev=0 2>$null
+        $shortCommit = git rev-parse --short HEAD
+        if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($shortCommit)) {
+            $version = "dev"
+        } elseif ([string]::IsNullOrWhiteSpace($latestTag)) {
+            $version = "dev-$shortCommit"
+        } else {
+            $version = "$latestTag-dev-$shortCommit"
+        }
+    }
+
+    if ($Release -and ($version -notmatch '^\d+\.\d+\.\d+$')) {
+        throw "Release tag '$version' is invalid. Expected MAJOR.MINOR.PATCH, for example 0.8.7."
+    }
+
+    iscc "/DMyAppVersion=$version" $installerScript
+    $exitCode = $LASTEXITCODE
+} finally {
+    Pop-Location
+}
+
+if ($exitCode -ne 0) {
+    exit $exitCode
+}
diff --git a/build/scripts/build-win.ps1 b/build/scripts/build-win.ps1
new file mode 100644
index 0000000..f121bb1
--- /dev/null
+++ b/build/scripts/build-win.ps1
@@ -0,0 +1,38 @@
+$ErrorActionPreference = "Stop"
+
+$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
+$projectRoot = Resolve-Path (Join-Path $scriptDir "..\..")
+$distDir = Join-Path $projectRoot "build\dist"
+
+New-Item -ItemType Directory -Force $distDir | Out-Null
+
+$env:CGO_ENABLED = "1"
+$env:CC = "clang --target=x86_64-w64-windows-gnu"
+$env:CXX = "clang++ --target=x86_64-w64-windows-gnu"
+$env:CGO_CFLAGS = "-O3 -march=x86-64-v3"
+$env:CGO_LDFLAGS = "-O3"
+
+Push-Location $projectRoot
+try {
+    $version = git describe --tags --exact-match 2>$null
+    if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($version)) {
+        $latestTag = git describe --tags --abbrev=0 2>$null
+        $shortCommit = git rev-parse --short HEAD
+        if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($shortCommit)) {
+            $version = "dev"
+        } elseif ([string]::IsNullOrWhiteSpace($latestTag)) {
+            $version = "dev-$shortCommit"
+        } else {
+            $version = "$latestTag-dev-$shortCommit"
+        }
+    }
+
+    go build -ldflags="-s -w -H=windowsgui -extld=x86_64-w64-mingw32-gcc -X main.version=$version" -o (Join-Path $distDir "musicalc.exe")
+    $exitCode = $LASTEXITCODE
+} finally {
+    Pop-Location
+}
+
+if ($exitCode -ne 0) {
+    exit $exitCode
+}
diff --git a/install.sh b/build/scripts/install.sh
old mode 100755
new mode 100644
similarity index 100%
rename from install.sh
rename to build/scripts/install.sh
diff --git a/go.mod b/go.mod
index c5981fb..221a341 100644
--- a/go.mod
+++ b/go.mod
@@ -1,50 +1,49 @@
 module musicalc
 
-go 1.24.0
-
-toolchain go1.24.5
+go 1.26.2
 
 require (
-	fyne.io/fyne/v2 v2.7.1
+	fyne.io/fyne/v2 v2.7.3
 	github.com/chinenual/go-scala v1.2.0
 	github.com/faiface/beep v1.1.0
 )
 
 require (
-	fyne.io/systray v1.11.1-0.20250603113521-ca66a66d8b58 // indirect
-	github.com/BurntSushi/toml v1.5.0 // indirect
+	fyne.io/systray v1.12.1 // indirect
+	github.com/BurntSushi/toml v1.6.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/fredbi/uri v1.1.1 // indirect
-	github.com/fsnotify/fsnotify v1.9.0 // indirect
+	github.com/fsnotify/fsnotify v1.10.0 // indirect
 	github.com/fyne-io/gl-js v0.2.0 // indirect
 	github.com/fyne-io/glfw-js v0.3.0 // indirect
 	github.com/fyne-io/image v0.1.1 // indirect
 	github.com/fyne-io/oksvg v0.2.0 // indirect
-	github.com/go-gl/gl v0.0.0-20231021071112-07e5d0ea2e71 // indirect
-	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20240506104042-037f3cc74f2a // indirect
-	github.com/go-text/render v0.2.0 // indirect
-	github.com/go-text/typesetting v0.2.1 // indirect
-	github.com/godbus/dbus/v5 v5.1.0 // indirect
+	github.com/go-gl/gl v0.0.0-20260331235117-4566fea9a276 // indirect
+	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20260406072232-3ac4aa2bb164 // indirect
+	github.com/go-text/render v0.2.1 // indirect
+	github.com/go-text/typesetting v0.3.4 // indirect
+	github.com/godbus/dbus/v5 v5.2.2 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/hack-pad/go-indexeddb v0.3.2 // indirect
-	github.com/hack-pad/safejs v0.1.0 // indirect
-	github.com/hajimehoshi/oto v0.7.1 // indirect
+	github.com/hack-pad/safejs v0.1.1 // indirect
+	github.com/hajimehoshi/oto v1.0.2 // indirect
 	github.com/jeandeaual/go-locale v0.0.0-20250612000132-0ef82f21eade // indirect
 	github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25 // indirect
 	github.com/kr/text v0.2.0 // indirect
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
-	github.com/nicksnyder/go-i18n/v2 v2.5.1 // indirect
+	github.com/nicksnyder/go-i18n/v2 v2.6.1 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rymdport/portal v0.4.2 // indirect
 	github.com/srwiley/oksvg v0.0.0-20221011165216-be6e8873101c // indirect
 	github.com/srwiley/rasterx v0.0.0-20220730225603-2ab79fcdd4ef // indirect
 	github.com/stretchr/testify v1.11.1 // indirect
-	github.com/yuin/goldmark v1.7.8 // indirect
-	golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8 // indirect
-	golang.org/x/image v0.24.0 // indirect
-	golang.org/x/mobile v0.0.0-20231127183840-76ac6878050a // indirect
-	golang.org/x/net v0.48.0 // indirect
-	golang.org/x/sys v0.39.0 // indirect
-	golang.org/x/text v0.32.0 // indirect
+	github.com/yuin/goldmark v1.8.2 // indirect
+	golang.org/x/exp/shiny v0.0.0-20260410095643-746e56fc9e2f // indirect
+	golang.org/x/image v0.39.0 // indirect
+	golang.org/x/mobile v0.0.0-20260410095206-2cfb76559b7b // indirect
+	golang.org/x/net v0.53.0 // indirect
+	golang.org/x/sys v0.43.0 // indirect
+	golang.org/x/text v0.36.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index d482c0a..ddd91e7 100644
--- a/go.sum
+++ b/go.sum
@@ -1,9 +1,9 @@
-fyne.io/fyne/v2 v2.7.1 h1:ja7rNHWWEooha4XBIZNnPP8tVFwmTfwMJdpZmLxm2Zc=
-fyne.io/fyne/v2 v2.7.1/go.mod h1:xClVlrhxl7D+LT+BWYmcrW4Nf+dJTvkhnPgji7spAwE=
-fyne.io/systray v1.11.1-0.20250603113521-ca66a66d8b58 h1:eA5/u2XRd8OUkoMqEv3IBlFYSruNlXD8bRHDiqm0VNI=
-fyne.io/systray v1.11.1-0.20250603113521-ca66a66d8b58/go.mod h1:RVwqP9nYMo7h5zViCBHri2FgjXF7H2cub7MAq4NSoLs=
-github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
-github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
+fyne.io/fyne/v2 v2.7.3 h1:xBT/iYbdnNHONWO38fZMBrVBiJG8rV/Jypmy4tVfRWE=
+fyne.io/fyne/v2 v2.7.3/go.mod h1:gu+dlIcZWSzKZmnrY8Fbnj2Hirabv2ek+AKsfQ2bBlw=
+fyne.io/systray v1.12.1 h1:ygBD6aZXwiOmZoY5N+ukbH9pih0Kq6fYgVeMYbr5skQ=
+fyne.io/systray v1.12.1/go.mod h1:RVwqP9nYMo7h5zViCBHri2FgjXF7H2cub7MAq4NSoLs=
+github.com/BurntSushi/toml v1.6.0 h1:dRaEfpa2VI55EwlIW72hMRHdWouJeRF7TPYhI+AUQjk=
+github.com/BurntSushi/toml v1.6.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/chinenual/go-scala v1.2.0 h1:FA9qlw2eJQA+jyWgJH9oQm+mGwewN93387pm/kuy3rM=
 github.com/chinenual/go-scala v1.2.0/go.mod h1:Uc09g2xLaUHqx3sK+1h3E0R3hG+ZFMNkVVDtEJhi7F0=
@@ -17,8 +17,8 @@ github.com/felixge/fgprof v0.9.3 h1:VvyZxILNuCiUCSXtPtYmmtGvb65nqXh2QFWc0Wpf2/g=
 github.com/felixge/fgprof v0.9.3/go.mod h1:RdbpDgzqYVh/T9fPELJyV7EYJuHB55UTEULNun8eiPw=
 github.com/fredbi/uri v1.1.1 h1:xZHJC08GZNIUhbP5ImTHnt5Ya0T8FI2VAwI/37kh2Ko=
 github.com/fredbi/uri v1.1.1/go.mod h1:4+DZQ5zBjEwQCDmXW5JdIjz0PUA+yJbvtBv+u+adr5o=
-github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
-github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
+github.com/fsnotify/fsnotify v1.10.0 h1:Xx/5Ydg9CeBDX/wi4VJqStNtohYjitZhhlHt4h3St1M=
+github.com/fsnotify/fsnotify v1.10.0/go.mod h1:TLheqan6HD6GBK6PrDWyDPBaEV8LspOxvPSjC+bVfgo=
 github.com/fyne-io/gl-js v0.2.0 h1:+EXMLVEa18EfkXBVKhifYB6OGs3HwKO3lUElA0LlAjs=
 github.com/fyne-io/gl-js v0.2.0/go.mod h1:ZcepK8vmOYLu96JoxbCKJy2ybr+g1pTnaBDdl7c3ajI=
 github.com/fyne-io/glfw-js v0.3.0 h1:d8k2+Y7l+zy2pc7wlGRyPfTgZoqDf3AI4G+2zOWhWUk=
@@ -32,30 +32,32 @@ github.com/gdamore/tcell v1.3.0/go.mod h1:Hjvr+Ofd+gLglo7RYKxxnzCBmev3BzsS67MebK
 github.com/go-audio/audio v1.0.0/go.mod h1:6uAu0+H2lHkwdGsAY+j2wHPNPpPoeg5AaEFh9FlA+Zs=
 github.com/go-audio/riff v1.0.0/go.mod h1:l3cQwc85y79NQFCRB7TiPoNiaijp6q8Z0Uv38rVG498=
 github.com/go-audio/wav v1.0.0/go.mod h1:3yoReyQOsiARkvPl3ERCi8JFjihzG6WhjYpZCf5zAWE=
-github.com/go-gl/gl v0.0.0-20231021071112-07e5d0ea2e71 h1:5BVwOaUSBTlVZowGO6VZGw2H/zl9nrd3eCZfYV+NfQA=
-github.com/go-gl/gl v0.0.0-20231021071112-07e5d0ea2e71/go.mod h1:9YTyiznxEY1fVinfM7RvRcjRHbw2xLBJ3AAGIT0I4Nw=
-github.com/go-gl/glfw/v3.3/glfw v0.0.0-20240506104042-037f3cc74f2a h1:vxnBhFDDT+xzxf1jTJKMKZw3H0swfWk9RpWbBbDK5+0=
-github.com/go-gl/glfw/v3.3/glfw v0.0.0-20240506104042-037f3cc74f2a/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
-github.com/go-text/render v0.2.0 h1:LBYoTmp5jYiJ4NPqDc2pz17MLmA3wHw1dZSVGcOdeAc=
-github.com/go-text/render v0.2.0/go.mod h1:CkiqfukRGKJA5vZZISkjSYrcdtgKQWRa2HIzvwNN5SU=
-github.com/go-text/typesetting v0.2.1 h1:x0jMOGyO3d1qFAPI0j4GSsh7M0Q3Ypjzr4+CEVg82V8=
-github.com/go-text/typesetting v0.2.1/go.mod h1:mTOxEwasOFpAMBjEQDhdWRckoLLeI/+qrQeBCTGEt6M=
-github.com/go-text/typesetting-utils v0.0.0-20241103174707-87a29e9e6066 h1:qCuYC+94v2xrb1PoS4NIDe7DGYtLnU2wWiQe9a1B1c0=
-github.com/go-text/typesetting-utils v0.0.0-20241103174707-87a29e9e6066/go.mod h1:DDxDdQEnB70R8owOx3LVpEFvpMK9eeH1o2r0yZhFI9o=
-github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
-github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
-github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
+github.com/go-gl/gl v0.0.0-20260331235117-4566fea9a276 h1:IO5P06Pcj9K04d+l4nrf3c2U56+dAotIFG6u4P1wAHI=
+github.com/go-gl/gl v0.0.0-20260331235117-4566fea9a276/go.mod h1:9YTyiznxEY1fVinfM7RvRcjRHbw2xLBJ3AAGIT0I4Nw=
+github.com/go-gl/glfw/v3.3/glfw v0.0.0-20260406072232-3ac4aa2bb164 h1:ddtotcEXIT7dFhSeXIWjK8YMFYl5bB2NdYQwgv6Uqjk=
+github.com/go-gl/glfw/v3.3/glfw v0.0.0-20260406072232-3ac4aa2bb164/go.mod h1:SyRD8YfuKk+ZXlDqYiqe1qMSqjNgtHzBTG810KUagMc=
+github.com/go-text/render v0.2.1 h1:qwHhxqGUjjg4L0XyJWj7M7bpY75NZM+kBpv2Yfw5mcg=
+github.com/go-text/render v0.2.1/go.mod h1:HCCAq8MUlm/WRcXshBb4K/n+IkjeXQ1c2Ba+yICSm0A=
+github.com/go-text/typesetting v0.3.4 h1:YYurUOtEb9kGSOz4uE3k4OpBGsp1dDL8+fjCeaFamAU=
+github.com/go-text/typesetting v0.3.4/go.mod h1:4qZCQphq4KSgGTAeI0uMEkVbROgfah8BuyF5LRYr7XY=
+github.com/go-text/typesetting-utils v0.0.0-20260223113751-2d88ac90dae3 h1:drBZzMgdYPbmyXqOto4YhhJGrFIQCX94FpR4MzTCsos=
+github.com/go-text/typesetting-utils v0.0.0-20260223113751-2d88ac90dae3/go.mod h1:3/62I4La/HBRX9TcTpBj4eipLiwzf+vhI+7whTc9V7o=
+github.com/godbus/dbus/v5 v5.2.2 h1:TUR3TgtSVDmjiXOgAAyaZbYmIeP3DPkld3jgKGV8mXQ=
+github.com/godbus/dbus/v5 v5.2.2/go.mod h1:3AAv2+hPq5rdnr5txxxRwiGjPXamgoIHgz9FPBfOp3c=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/pprof v0.0.0-20211214055906-6f57359322fd h1:1FjCyPC+syAzJ5/2S8fqdZK1R22vvA0J7JZKcuOIQ7Y=
 github.com/google/pprof v0.0.0-20211214055906-6f57359322fd/go.mod h1:KgnwoLYCZ8IQu3XUZ8Nc/bM9CCZFOyjUNOSygVozoDg=
 github.com/hack-pad/go-indexeddb v0.3.2 h1:DTqeJJYc1usa45Q5r52t01KhvlSN02+Oq+tQbSBI91A=
 github.com/hack-pad/go-indexeddb v0.3.2/go.mod h1:QvfTevpDVlkfomY498LhstjwbPW6QC4VC/lxYb0Kom0=
-github.com/hack-pad/safejs v0.1.0 h1:qPS6vjreAqh2amUqj4WNG1zIw7qlRQJ9K10eDKMCnE8=
-github.com/hack-pad/safejs v0.1.0/go.mod h1:HdS+bKF1NrE72VoXZeWzxFOVQVUSqZJAG0xNCnb+Tio=
+github.com/hack-pad/safejs v0.1.1 h1:d5qPO0iQ7h2oVtpzGnLExE+Wn9AtytxIfltcS2b9KD8=
+github.com/hack-pad/safejs v0.1.1/go.mod h1:HdS+bKF1NrE72VoXZeWzxFOVQVUSqZJAG0xNCnb+Tio=
 github.com/hajimehoshi/go-mp3 v0.3.0/go.mod h1:qMJj/CSDxx6CGHiZeCgbiq2DSUkbK0UbtXShQcnfyMM=
 github.com/hajimehoshi/oto v0.6.1/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
-github.com/hajimehoshi/oto v0.7.1 h1:I7maFPz5MBCwiutOrz++DLdbr4rTzBsbBuV2VpgU9kk=
 github.com/hajimehoshi/oto v0.7.1/go.mod h1:wovJ8WWMfFKvP587mhHgot/MBr4DnNy9m6EepeVGnos=
+github.com/hajimehoshi/oto v1.0.2 h1:NxUZoQkV4UgbJobPIT/pVTcT/qpkd3YqEGRzPtk7Rc8=
+github.com/hajimehoshi/oto v1.0.2/go.mod h1:AARGdOaQIhMJ1fhKu7nMzEesM2/mE4KZ8A1K1VZozuQ=
 github.com/icza/bitio v1.0.0/go.mod h1:0jGnlLAx8MKMr9VGnn/4YrvZiprkvBelsVIbA9Jjr9A=
 github.com/icza/mighty v0.0.0-20180919140131-cfd07d671de6/go.mod h1:xQig96I1VNBDIWGCdTt54nHt6EeI639SmHycLYL7FkA=
 github.com/jeandeaual/go-locale v0.0.0-20250612000132-0ef82f21eade h1:FmusiCI1wHw+XQbvL9M+1r/C3SPqKrmBaIOYwVfQoDE=
@@ -72,8 +74,8 @@ github.com/mewkiz/flac v1.0.7/go.mod h1:yU74UH277dBUpqxPouHSQIar3G1X/QIclVbFahSd
 github.com/mewkiz/pkg v0.0.0-20190919212034-518ade7978e2/go.mod h1:3E2FUC/qYUfM8+r9zAwpeHJzqRVVMIYnpzD/clwWxyA=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
-github.com/nicksnyder/go-i18n/v2 v2.5.1 h1:IxtPxYsR9Gp60cGXjfuR/llTqV8aYMsC472zD0D1vHk=
-github.com/nicksnyder/go-i18n/v2 v2.5.1/go.mod h1:DrhgsSDZxoAfvVrBVLXoxZn/pN5TXqaDbq7ju94viiQ=
+github.com/nicksnyder/go-i18n/v2 v2.6.1 h1:JDEJraFsQE17Dut9HFDHzCoAWGEQJom5s0TRd17NIEQ=
+github.com/nicksnyder/go-i18n/v2 v2.6.1/go.mod h1:Vee0/9RD3Quc/NmwEjzzD7VTZ+Ir7QbXocrkhOzmUKA=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -92,32 +94,35 @@ github.com/srwiley/rasterx v0.0.0-20220730225603-2ab79fcdd4ef h1:Ch6Q+AZUxDBCVqd
 github.com/srwiley/rasterx v0.0.0-20220730225603-2ab79fcdd4ef/go.mod h1:nXTWP6+gD5+LUJ8krVhhoeHjvHTutPxMYl5SvkcnJNE=
 github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
-github.com/yuin/goldmark v1.7.8 h1:iERMLn0/QJeHFhxSt3p6PeN9mGnvIKSpG9YYorDMnic=
-github.com/yuin/goldmark v1.7.8/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E=
+github.com/yuin/goldmark v1.8.2 h1:kEGpgqJXdgbkhcOgBxkC0X0PmoPG1ZyoZ117rDVp4zE=
+github.com/yuin/goldmark v1.8.2/go.mod h1:ip/1k0VRfGynBgxOz0yCqHrbZXhcjxyuS66Brc7iBKg=
+go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
+go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8 h1:idBdZTd9UioThJp8KpM/rTSinK/ChZFBE43/WtIy8zg=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp/shiny v0.0.0-20260410095643-746e56fc9e2f h1:CMCUocbbREagqundn9s7nFTY3lrmw+Pmi90x2nrbw+g=
+golang.org/x/exp/shiny v0.0.0-20260410095643-746e56fc9e2f/go.mod h1:75UwHX2ZPO3acaGFaP5bhU5yJd6CzUV5v4rX5CiE9ag=
 golang.org/x/image v0.0.0-20190220214146-31aff87c08e9/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
-golang.org/x/image v0.24.0 h1:AN7zRgVsbvmTfNyqIbbOraYL8mSwcKncEj8ofjgzcMQ=
-golang.org/x/image v0.24.0/go.mod h1:4b/ITuLfqYq1hqZcjofwctIhi7sZh2WaCjvsBNjjya8=
+golang.org/x/image v0.39.0 h1:skVYidAEVKgn8lZ602XO75asgXBgLj9G/FE3RbuPFww=
+golang.org/x/image v0.39.0/go.mod h1:sIbmppfU+xFLPIG0FoVUTvyBMmgng1/XAMhQ2ft0hpA=
 golang.org/x/mobile v0.0.0-20190415191353-3e0bab5405d6/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
-golang.org/x/mobile v0.0.0-20231127183840-76ac6878050a h1:sYbmY3FwUWCBTodZL1S3JUuOvaW6kM2o+clDzzDNBWg=
-golang.org/x/mobile v0.0.0-20231127183840-76ac6878050a/go.mod h1:Ede7gF0KGoHlj822RtphAHK1jLdrcuRBZg0sF1Q+SPc=
+golang.org/x/mobile v0.0.0-20260410095206-2cfb76559b7b h1:Qt2eaXcZ8x20iAcoZ6AceeMMtnjuPHvC51KRCH1DKSQ=
+golang.org/x/mobile v0.0.0-20260410095206-2cfb76559b7b/go.mod h1:5Fu78lew5ucMXt8w2KYcwvxu2rkC/liHzUvaoiI+H/M=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
-golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
+golang.org/x/net v0.53.0 h1:d+qAbo5L0orcWAr0a9JweQpjXF19LMXJE8Ey7hwOdUA=
+golang.org/x/net v0.53.0/go.mod h1:JvMuJH7rrdiCfbeHoo3fCQU24Lf5JJwT9W3sJFulfgs=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190429190828-d89cdac9e872/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
-golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.43.0 h1:Rlag2XtaFTxp19wS8MXlJwTvoh8ArU6ezoyFsMyCTNI=
+golang.org/x/sys v0.43.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
-golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
+golang.org/x/text v0.36.0 h1:JfKh3XmcRPqZPKevfXVpI1wXPTqbkE5f7JA92a55Yxg=
+golang.org/x/text v0.36.0/go.mod h1:NIdBknypM8iqVmPiuco0Dh6P5Jcdk8lJL0CUebqK164=
 golang.org/x/tools v0.0.0-20190624222133-a101b041ded4/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
diff --git a/internal/ui/timecode.go b/internal/ui/timecode.go
index 121b934..4da6858 100644
--- a/internal/ui/timecode.go
+++ b/internal/ui/timecode.go
@@ -108,6 +108,13 @@ func NewTimecodeTab() fyne.CanvasObject {
 			resultTC, maxWidth, resultFrames, fpsLabel)
 	}
 
+	pushHistory := func(entry string) {
+		historyList = append([]string{entry}, historyList...)
+		historyText.SetText(strings.Join(historyList, "\n\n"))
+		historyText.Refresh()
+		historyScroll.ScrollToTop()
+	}
+
 	// Track previous FPS for conversion history
 	var previousFPS string
 	previousFPS = "30 fps"
@@ -156,10 +163,7 @@ func NewTimecodeTab() fyne.CanvasObject {
 
 				conversionEntry := fmt.Sprintf("  %s (%*df) @%s\n= %s (%*df) @%s",
 					oldTC, maxWidth, oldFrames, oldFpsLabel, newTC, maxWidth, newFrames, newFpsLabel)
-				historyList = append(historyList, conversionEntry)
-				historyText.SetText(strings.Join(historyList, "\n\n"))
-				historyText.Refresh()
-				historyScroll.ScrollToBottom()
+				pushHistory(conversionEntry)
 
 				// Timecode H:M:S:F values don't change, only recalculate display with new FPS
 				// No need to update entry fields since H:M:S:F stay the same
@@ -189,10 +193,7 @@ func NewTimecodeTab() fyne.CanvasObject {
 
 		fpsLabel := strings.Split(fpsSelect.Selected, " ")[0]
 		historyEntry := formatHistoryEntry(tc1, frames1, tc2, frames2, result.Timecode, result.TotalFrames, fpsLabel, "+")
-		historyList = append(historyList, historyEntry)
-		historyText.SetText(strings.Join(historyList, "\n\n"))
-		historyText.Refresh()
-		historyScroll.ScrollToBottom()
+		pushHistory(historyEntry)
 
 		// Update first timecode with result and reset second timecode
 		updating = true
@@ -223,10 +224,7 @@ func NewTimecodeTab() fyne.CanvasObject {
 
 		fpsLabel := strings.Split(fpsSelect.Selected, " ")[0]
 		historyEntry := formatHistoryEntry(tc1, frames1, tc2, frames2, result.Timecode, result.TotalFrames, fpsLabel, "-")
-		historyList = append(historyList, historyEntry)
-		historyText.SetText(strings.Join(historyList, "\n\n"))
-		historyText.Refresh()
-		historyScroll.ScrollToBottom()
+		pushHistory(historyEntry)
 
 		// Update first timecode with result and reset second timecode
 		updating = true
diff --git a/internal/ui/widgets/timecode_entry.go b/internal/ui/widgets/timecode_entry.go
index ac4fc09..25a3347 100644
--- a/internal/ui/widgets/timecode_entry.go
+++ b/internal/ui/widgets/timecode_entry.go
@@ -3,6 +3,7 @@ package widgets
 import (
 	"fmt"
 	"strconv"
+	"time"
 
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/driver/mobile"
@@ -15,6 +16,8 @@ type TimecodeEntry struct {
 	OnComplete       func()                 // Called when all digits are entered
 	OnOperationKey   func(key fyne.KeyName) // Called when +/- keys are pressed
 	fields           []string               // Field values [frames, seconds, minutes, hours] - right to left
+	lastOpKey        fyne.KeyName
+	lastOpAt         time.Time
 }
 
 func NewTimecodeEntry(threeDigits bool) *TimecodeEntry {
@@ -41,15 +44,32 @@ func (e *TimecodeEntry) Keyboard() mobile.KeyboardType {
 	return mobile.NumberKeyboard
 }
 
+func (e *TimecodeEntry) shouldHandleOperationKey(key fyne.KeyName) bool {
+	// Some platforms deliver both TypedRune ('-' / '+') and TypedKey (KeyMinus/KeyEqual)
+	// for a single keypress. De-dupe within a short window.
+	if e.lastOpKey == key {
+		if !e.lastOpAt.IsZero() && time.Since(e.lastOpAt) < 50*time.Millisecond {
+			return false
+		}
+	}
+	e.lastOpKey = key
+	e.lastOpAt = time.Now()
+	return true
+}
+
 // TypedRune handles right-justified timecode entry with dot as field separator
 func (e *TimecodeEntry) TypedRune(r rune) {
 	// Handle +/- as operation keys
 	if r == '+' || r == '-' {
 		if e.OnOperationKey != nil {
 			if r == '+' {
-				e.OnOperationKey(fyne.KeyEqual)
+				if e.shouldHandleOperationKey(fyne.KeyEqual) {
+					e.OnOperationKey(fyne.KeyEqual)
+				}
 			} else {
-				e.OnOperationKey(fyne.KeyMinus)
+				if e.shouldHandleOperationKey(fyne.KeyMinus) {
+					e.OnOperationKey(fyne.KeyMinus)
+				}
 			}
 		}
 		return
@@ -96,7 +116,9 @@ func (e *TimecodeEntry) TypedKey(k *fyne.KeyEvent) {
 	case fyne.KeyEqual, fyne.KeyMinus:
 		// Handle +/- operation keys
 		if e.OnOperationKey != nil {
-			e.OnOperationKey(k.Name)
+			if e.shouldHandleOperationKey(k.Name) {
+				e.OnOperationKey(k.Name)
+			}
 		}
 		return
 	case fyne.KeyPeriod, fyne.KeyComma:
diff --git a/main.go b/main.go
index 0f8393b..f41c607 100644
--- a/main.go
+++ b/main.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	_ "embed"
 	"musicalc/internal/ui"
 	"strings"
 
@@ -12,8 +11,7 @@ import (
 	"fyne.io/fyne/v2/widget"
 )
 
-//go:embed VERSION
-var version string
+var version = "dev"
 
 // CategoryInfo represents a category with tab indices
 type CategoryInfo struct {
@@ -54,7 +52,7 @@ func main() {
 		"note2freq":    "Note to Frequency",
 		"freq2note":    "Frequency to Note",
 		"samplelength": "Sample Length",
-		"alignment":    "Multi-Mic Alignment Delay",
+		"alignment":    "Alignment Delay",
 	}
 
 	var switchCategory func(int)
@@ -109,7 +107,7 @@ func main() {
 		{Name: "Time & Tempo", TabIndices: []int{0, 1, 2}},
 		{Name: "Frequency & Pitch", TabIndices: []int{3, 4}},
 		{Name: "Analysis", TabIndices: []int{5}},
-		{Name: "Multi Mic", TabIndices: []int{6}},
+		{Name: "Multi-Mic", TabIndices: []int{6}},
 	}
 
 	// Tab heading keys for each global tab index
diff --git a/utils/release.py b/utils/release.py
index 497c6e0..270539b 100644
--- a/utils/release.py
+++ b/utils/release.py
@@ -1,254 +1,141 @@
 #!/usr/bin/env python3
 """
-Release script for MusiCalc
-Interactive release workflow with version management and git automation
+Release helper for MusiCalc.
+
+Git tags are the only release version source. This script validates the
+current tag and runs GoReleaser without creating commits, tags, or pushes.
 """
 
-import sys
-import os
+import argparse
 import re
 import subprocess
+import sys
 from pathlib import Path
 
 
-def find_project_root():
-    """Find project root by looking for go.mod file"""
+DEFAULT_CONFIGS = [
+    Path("build/release/goreleaser-linux-amd64.yaml"),
+    Path("build/release/goreleaser-linux-arm64.yaml"),
+    Path("build/release/goreleaser-win-all.yaml"),
+]
+
+VERSION_RE = re.compile(r"^\d+\.\d+\.\d+$")
+
+
+def find_project_root() -> Path:
     current = Path.cwd().resolve()
-    
-    # Check current directory and all parents
     for directory in [current] + list(current.parents):
         if (directory / "go.mod").exists():
             return directory
-    
-    # If not found, check if we're in a subdirectory with ../go.mod
+
     script_dir = Path(__file__).parent.resolve()
     for directory in [script_dir] + list(script_dir.parents):
         if (directory / "go.mod").exists():
             return directory
-    
-    print("✗ Error: Could not find project root (go.mod not found)")
-    sys.exit(1)
-
-
-def read_current_version(project_root):
-    """Read current version from VERSION file"""
-    version_file = project_root / "VERSION"
-    if version_file.exists():
-        return version_file.read_text().strip()
-    return None
-
-
-def update_version_file(project_root, new_version):
-    """Update VERSION file"""
-    version_file = project_root / "VERSION"
-    version_file.write_text(new_version + "\n")
-    print(f"✓ Updated VERSION: {new_version}")
-
-
-def update_inno_setup(project_root, new_version):
-    """Update version in musicalc.iss Inno Setup script"""
-    iss_file = project_root / "musicalc.iss"
-    
-    if not iss_file.exists():
-        print(f"✗ Error: {iss_file} not found")
-        return False
-    
-    content = iss_file.read_text(encoding='utf-8')
-    
-    # Update #define MyAppVersion
-    pattern = r'(#define MyAppVersion\s+")[^"]+(")' 
-    
-    # Check if pattern exists in file
-    if not re.search(pattern, content):
-        print(f"✗ Error: Could not find version pattern in {iss_file}")
-        return False
-    
-    replacement = r'\g<1>' + new_version + r'\g<2>'
-    new_content = re.sub(pattern, replacement, content)
-    
-    # Only write if content changed
-    if new_content != content:
-        iss_file.write_text(new_content, encoding='utf-8')
-        print(f"✓ Updated musicalc.iss: {new_version}")
-    else:
-        print(f"✓ musicalc.iss already at version: {new_version}")
-    
-    return True
-
-
-def update_desktop_files(project_root, new_version):
-    """Update version in .desktop files (StartupWMClass field)"""
-    desktop_files = [
-        project_root / "musicalc.desktop",
-        project_root / "musicalc-pkg.desktop"
-    ]
-    
-    success = True
-    for desktop_file in desktop_files:
-        if not desktop_file.exists():
-            print(f"⚠ Warning: {desktop_file.name} not found, skipping")
-            continue
-        
-        content = desktop_file.read_text(encoding='utf-8')
-        
-        # Update StartupWMClass=MusiCalc v0.8.4
-        pattern = r'(StartupWMClass=MusiCalc v)[0-9.]+'
-        
-        # Check if pattern exists in file
-        if not re.search(pattern, content):
-            print(f"✗ Error: Could not find StartupWMClass pattern in {desktop_file.name}")
-            success = False
-            continue
-        
-        replacement = r'\g<1>' + new_version
-        new_content = re.sub(pattern, replacement, content)
-        
-        # Only write if content changed
-        if new_content != content:
-            desktop_file.write_text(new_content, encoding='utf-8')
-            print(f"✓ Updated {desktop_file.name}: {new_version}")
-        else:
-            print(f"✓ {desktop_file.name} already at version: {new_version}")
-    
-    return success
-
-
-def validate_version(version_str):
-    """Validate version string format (e.g., 0.8.3)"""
-    pattern = r'^\d+\.\d+\.\d+$'
-    return re.match(pattern, version_str) is not None
-
-
-def run_command(cmd, cwd, description):
-    """Run a shell command and return success status"""
-    print(f"\n→ {description}...")
-    try:
-        result = subprocess.run(
-            cmd,
-            cwd=cwd,
-            shell=True,
-            check=True,
-            capture_output=True,
-            text=True
+
+    raise SystemExit("Error: could not find project root (go.mod not found)")
+
+
+def run(args: list[str], cwd: Path, description: str, capture: bool = False) -> str:
+    print(f"\n{description}...")
+    result = subprocess.run(
+        args,
+        cwd=cwd,
+        check=False,
+        capture_output=capture,
+        text=True,
+    )
+    if result.returncode != 0:
+        if capture and result.stderr:
+            print(result.stderr.strip())
+        raise SystemExit(f"Error: {description} failed")
+    if capture:
+        return result.stdout.strip()
+    return ""
+
+
+def exact_version_tag(project_root: Path) -> str:
+    tag = run(
+        ["git", "describe", "--tags", "--exact-match"],
+        project_root,
+        "Reading exact Git tag",
+        capture=True,
+    )
+    if not VERSION_RE.match(tag):
+        raise SystemExit(
+            f"Error: release tag '{tag}' is invalid; expected MAJOR.MINOR.PATCH, for example 0.8.7"
+        )
+    return tag
+
+
+def check_configs(project_root: Path, configs: list[Path]) -> None:
+    for config in configs:
+        run(
+            ["goreleaser", "check", "--config", str(config)],
+            project_root,
+            f"Checking {config}",
         )
-        if result.stdout:
-            print(result.stdout.strip())
-        print(f"✓ {description} completed")
-        return True
-    except subprocess.CalledProcessError as e:
-        print(f"✗ Error: {description} failed")
-        if e.stderr:
-            print(e.stderr.strip())
-        return False
-
-
-def main():
-    # Find project root
+
+
+def release_configs(project_root: Path, configs: list[Path], skip_publish: bool) -> None:
+    for config in configs:
+        command = ["goreleaser", "release", "--clean", "--config", str(config)]
+        if skip_publish:
+            command.append("--skip=publish")
+        run(command, project_root, f"Running GoReleaser for {config}")
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description="Validate and run a tag-based MusiCalc release."
+    )
+    parser.add_argument(
+        "--config",
+        action="append",
+        type=Path,
+        dest="configs",
+        help="GoReleaser config to use. May be specified multiple times for --check-only; release mode requires exactly one.",
+    )
+    parser.add_argument(
+        "--check-only",
+        action="store_true",
+        help="Only validate the current tag and GoReleaser configs. This is the default unless --release is set.",
+    )
+    parser.add_argument(
+        "--release",
+        action="store_true",
+        help="Run GoReleaser after validation. Requires exactly one --config.",
+    )
+    parser.add_argument(
+        "--publish",
+        action="store_true",
+        help="Allow GoReleaser to publish. By default, publishing is skipped.",
+    )
+    return parser.parse_args()
+
+
+def main() -> None:
+    args = parse_args()
     project_root = find_project_root()
-    print(f"Project root: {project_root}")
-    print()
-    
-    # Read current version
-    current_version = read_current_version(project_root)
-    if not current_version:
-        print("✗ Error: VERSION file not found or empty")
-        sys.exit(1)
-    
-    print(f"Current version: {current_version}")
-    print()
-    
-    # Ask if user wants to keep or change version
-    response = input(f"Keep version {current_version}? [Y/n]: ").strip().lower()
-    
-    new_version = current_version
-    if response == 'n':
-        while True:
-            new_version = input("Enter new version (format: xx.yy.zz): ").strip()
-            if validate_version(new_version):
-                break
-            print("✗ Invalid version format. Please use format like 0.8.4")
-        
-        # Update VERSION file
-        update_version_file(project_root, new_version)
-    else:
-        print(f"Using version: {new_version}")
-    
-    print()
-    
-    # Run go mod tidy
-    if not run_command("go mod tidy", project_root, "Running go mod tidy"):
-        sys.exit(1)
-    
-    # Update musicalc.iss
-    print()
-    if not update_inno_setup(project_root, new_version):
-        sys.exit(1)
-    
-    # Update .desktop files
-    print()
-    if not update_desktop_files(project_root, new_version):
-        sys.exit(1)
-    
-    # Ask for commit message
-    print()
-    commit_message = input("Enter release commit message: ").strip()
-    if not commit_message:
-        commit_message = f"Release v{new_version}"
-    
-    # Git workflow
-    print()
-    print("═" * 50)
-    print("Git Workflow")
-    print("═" * 50)
-    
-    # Stage files
-    if not run_command("git add VERSION musicalc.iss musicalc.desktop musicalc-pkg.desktop go.mod go.sum", project_root, "Staging files"):
-        sys.exit(1)
-    
-    # Check if there are changes to commit
-    try:
-        result = subprocess.run(
-            "git diff --cached --quiet",
-            cwd=project_root,
-            shell=True
+    configs = args.configs or DEFAULT_CONFIGS
+
+    tag = exact_version_tag(project_root)
+    print(f"Release version: {tag}")
+    print("Git tags are user-managed; this script will not create or push tags.")
+
+    check_configs(project_root, configs)
+
+    if args.check_only or not args.release:
+        print("\nValidation complete.")
+        return
+
+    if len(configs) != 1:
+        raise SystemExit(
+            "Error: release mode requires exactly one --config. Use --check-only to validate all configs."
         )
-        has_changes = result.returncode != 0
-    except subprocess.CalledProcessError:
-        has_changes = True
-    
-    # Commit and push if there are changes
-    if has_changes:
-        if not run_command(f'git commit -m "{commit_message}"', project_root, "Committing changes"):
-            sys.exit(1)
-        
-        # Push commits
-        if not run_command("git push", project_root, "Pushing commits to origin"):
-            sys.exit(1)
-    else:
-        print("\n→ No changes to commit (version unchanged)")
-        print("✓ Skipping commit step")
-    
-    # Create and push tag
-    tag_name = f"{new_version}"
-    if not run_command(f'git tag -a {tag_name} -m "Release {tag_name}"', project_root, f"Creating tag {tag_name}"):
-        sys.exit(1)
-    
-    if not run_command(f"git push origin {tag_name}", project_root, f"Pushing tag {tag_name}"):
-        sys.exit(1)
-    
-    # Success summary
-    print()
-    print("═" * 50)
-    print("✓ Release Complete!")
-    print("═" * 50)
-    print(f"Version: {new_version}")
-    print(f"Tag: {tag_name}")
-    print(f"Commit: {commit_message}")
-    print()
-    print("Next steps:")
-    print("  1. Build the application: go build -ldflags=\"-s -w -H=windowsgui\" -o musicalc.exe")
-    print("  2. Test the application")
-    print("  3. Create installer (if using Inno Setup)")
+
+    release_configs(project_root, configs, skip_publish=not args.publish)
+    print("\nRelease commands completed.")
 
 
 if __name__ == "__main__":