Update devcontainer image to use custom repository

[kdeal]

Use my own image, since I think it will start faster, is less bloated, and has all the tools I need.

Summary by CodeRabbit

• Chores
  • Updated the development container image to a newer base environment.

[coderabbitai]

Walkthrough

The Dev Container configuration in .devcontainer/devcontainer.json has its base Docker image changed from mcr.microsoft.com/devcontainers/universal:noble to ghcr.io/kdeal/devenv-cs:latest.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: switching the devcontainer image to a custom repository.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch update_devcontainer

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[coderabbitai]

🧹 Nitpick comments (1)

.devcontainer/devcontainer.json (1)

3-3: 🩺 Stability & Availability | 🔵 Trivial | ⚡ Quick win

Pin the image to an immutable digest or version tag.

Using the mutable latest tag means dev environment rebuilds may pull different images over time, causing non-reproducible builds and unexpected breakages. Pin to a specific digest (ghcr.io/kdeal/devenv-cs:latest@sha256:...) or a version tag if available.

-    "image": "ghcr.io/kdeal/devenv-cs:latest",
+    "image": "ghcr.io/kdeal/devenv-cs:latest@sha256:abc123...", // or a version tag like :v1.2.3

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In @.devcontainer/devcontainer.json at line 3, The devcontainer image reference
uses a mutable tag, so update the image entry in devcontainer.json to point to
an immutable pinned reference instead of the current latest tag. Use the
existing image key and replace the value with a specific digest or a fixed
version tag so rebuilds always pull the same environment.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In @.devcontainer/devcontainer.json:
- Line 3: The devcontainer image reference uses a mutable tag, so update the
image entry in devcontainer.json to point to an immutable pinned reference
instead of the current latest tag. Use the existing image key and replace the
value with a specific digest or a fixed version tag so rebuilds always pull the
same environment.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: af87de20-b219-417f-a7a2-a89354cd1d29

📥 Commits

Reviewing files that changed from the base of the PR and between 7024004 and b0ec349.

📒 Files selected for processing (1)

• .devcontainer/devcontainer.json

[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: b0ec349491

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[chatgpt-codex-connector]

Use an image that still provides the python launcher

This image drops the python executable that the dotfiles installer relies on: the published ghcr.io/kdeal/devenv-cs source is based on ubuntu:noble and installs python3-pip/python3-virtualenv, but not python-is-python3, so a fresh container does not get /usr/bin/python. Since the image also does not preinstall fish, setup reaches setup:22-23 on first Codespace creation and runs python $HERE/scripts/cmd_install.py fish, which exits with command-not-found before the dotfiles finish installing. Either keep an image with python, add the alias/package to this image, or update the installer to call python3.

Useful? React with 👍 / 👎.