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This app supports linking a GitHub App so users can grant access to specific repositories (instead of broad OAuth repo scope). The integration adds a Link GitHub entry under the /portal dashboard and a /portal/integrations/github page to install the app and browse accessible repos and commits.

Add the following env vars (server-side values are required only on the server):

• NEXT_PUBLIC_GH_APP_SLUG: Your GitHub App slug (public, used to build the install URL)
• NEXT_PUBLIC_PORTAL_ENABLED: Toggles /portal between full portal (auth + screens) and a Coming Soon page. Set to true to enable the portal; any other value shows Coming Soon without auth.
• NEXT_PUBLIC_REGISTRATIONS_OPEN: Controls visibility of the homepage "Register" CTA only. Set to true to show the CTA; any other value shows "Registrations opening soon".
• GITHUB_APP_ID: Your GitHub App ID (server only)
• GITHUB_APP_PRIVATE_KEY: The GitHub App private key in PEM format. You can paste with literal \n which will be converted to newlines.

Example:

NEXT_PUBLIC_GH_APP_SLUG=my-c2c-app
NEXT_PUBLIC_PORTAL_ENABLED=false
NEXT_PUBLIC_REGISTRATIONS_OPEN=false
GITHUB_APP_ID=123456
GITHUB_APP_PRIVATE_KEY=-----BEGIN PRIVATE KEY-----\nMIIEv...\n-----END PRIVATE KEY-----\n 

In your GitHub App settings:

• Permissions:
  • Minimum for browsing: Repository contents (Read-only) and Metadata (Read-only).
  • To auto-tag repositories with the Code2Create topic:
    • Repository administration: Read & write (required to add repository topics)
    • Optional fallback: Issues: Read & write (to create a label if topics are blocked)
• Webhooks: not required for basic browsing.
• Setup URL: set to https://<your-domain>/portal/integrations/github (or http://localhost:3000/portal/integrations/github for local).

The app will also attempt to pass redirect_url in the install link to return to the same page after installation.

• Go to /portal and click Link GitHub, or open /portal/integrations/github directly.
• Click Link GitHub to install the app and grant access to specific repos.
• After installation, you will be redirected back with installation_id. The page shows the repositories accessible to the installation and a lightweight commits viewer.

• Server actions in app/actions/github perform all GitHub calls on the server using the GitHub App JWT and installation tokens.
• The portal page imports these actions and calls them from the client; tokens never reach the browser.
• The selected installation (and optional repo) persists to the backend via POST /api/v1/github/installation in the c2cbackend service.