feat(packaging): build .deb and .rpm packages

[gantoine]

What

Adds .deb and .rpm Linux packages to the release, alongside the existing AppImage and zip.

• forge.config.ts: add MakerDeb and MakerRpm. Both declare mimeType: ["x-scheme-handler/posthog-code"], so installing registers the posthog-code:// deep-link handler system-wide via the generated .desktop file + the package manager's update-desktop-database trigger (the same mechanism VS Code's deb/rpm use). Package name/bin yield /usr/bin/posthog-code, consistent with the AUR package.
• package.json / lockfile: add @electron-forge/maker-deb and @electron-forge/maker-rpm.
• code-release.yml: the publish-linux job (x64 + arm64) now installs fakeroot (maker-deb) and rpm (maker-rpm), so both arches build and upload automatically.
• scripts/build-linux-docker.sh: install fakeroot + rpm so local pnpm --filter code make:linux doesn't break on the new makers, and add optional --target/--targets (aliases: deb, rpm, zip, appimage, or a full maker package name) to build a subset.

Why

Native Arch/Debian/Fedora-style installs that also register the URL scheme handler at install time, so the browser can launch the app after login without runtime registration.

Testing / validation

• forge.config.ts typechecks against the real maker types (no errors from the new blocks).
• Confirmed the makers' default dependency lists are Electron-version-gated, so the stale libgconf/GConf2 dep is excluded for our Electron — packages should be installable with default deps on modern Ubuntu/Debian/Fedora.
• build-linux-docker.sh target parser validated under bash across flag/=/comma/env forms (case-insensitive, rejects unknowns).
• Not yet built end-to-end here (needs a full Linux app build); the first CI run produces real artifacts. Smoke-test with apt-get install ./*.deb / dnf install ./*.rpm and xdg-mime query default x-scheme-handler/posthog-code.

Notes

• AUR packaging is a separate branch/PR (georges/linux-publish-aur).
• AppImage scheme registration (no install step) remains an open question — VS Code doesn't register from its portable build either.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Adds native Linux packaging to the Electron Forge release pipeline by introducing .deb and .rpm makers, wiring required build tooling into CI and the local Docker build script, and updating dependencies/lockfile accordingly.

Changes:

• Add Electron Forge MakerDeb and MakerRpm configuration (including URL scheme MIME registration).
• Update Linux build environments (CI + local Docker script) to install fakeroot and rpm, and allow selecting specific maker targets.
• Add new maker dependencies to package.json and pnpm-lock.yaml.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
pnpm-lock.yaml	Adds lock entries for new Electron Forge maker dependencies.
apps/code/scripts/build-linux-docker.sh	Installs deb/rpm tooling in container and adds target selection flag parsing.
apps/code/package.json	Adds @electron-forge/maker-deb and @electron-forge/maker-rpm devDependencies.
apps/code/forge.config.ts	Registers deb/rpm makers and configures package metadata + scheme handler MIME type.
.github/workflows/code-release.yml	Installs fakeroot and rpm in the Linux publish workflow.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

---

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[greptile-apps]

Prompt To Fix All With AI

Fix the following 1 code review issue. Work through them one at a time, proposing concise fixes.

---

### Issue 1 of 1
apps/code/forge.config.ts:211-239
Nine of the eleven options in `MakerDeb` and `MakerRpm` are identical. Extracting the shared fields into a single constant satisfies the OnceAndOnlyOnce rule and makes a future field change (e.g. updating the description or homepage) a one-line edit rather than two.

```suggestion
    new MakerDeb({
      options: {
        ...sharedLinuxOptions,
        section: "devel",
        maintainer: "PostHog <eng@posthog.com>",
      },
    }),
    new MakerRpm({
      options: {
        ...sharedLinuxOptions,
        license: "MIT",
      },
    }),
```

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