package app for microsoft store (msix)

[draylegend]

Context

Electrobun (v1.18.1) has zero built-in support for Windows Store distribution — confirmed by grepping node_modules/electrobun/src/cli/index.ts (no matches for msix, appx, partner center, sideload) and the full docs site. Its Windows packaging pipeline only produces a custom self-extracting Setup.exe + .tar.zst + .metadata.json, zipped — not an MSIX/APPX package.

To ship via the Microsoft Store, the build output needs to be wrapped externally, on top of Electrobun's own build, not through it.

What's needed

• A Partner Center developer account (one-time fee: ~$19 individual / ~$99 company)
• Package the built app (build/stable-win-x64/letora-Setup.exe + its contents, or the raw app files before zipping) into an MSIX package — likely via the MSIX Packaging Tool or MakeAppx.exe, using the Desktop Bridge approach for a classic Win32 app
• An app manifest (AppxManifest.xml) with identity/capabilities matching the Partner Center reservation
• Decide on signing: MSIX packages submitted through the Store can be re-signed by Microsoft on submission, so a self-owned cert isn't strictly required for that channel (unlike sideloaded MSIX, which does need a trusted cert) — worth confirming against current Partner Center docs when this is picked up
• A CI step (or manual process, at least initially) that runs after electrobun build --env=stable to produce and upload the .msix/.msixbundle to Partner Center

Scope

Store distribution only. GitHub Releases distribution (unsigned .zip) is handled separately in #3 and does not block this.