# Nixpkgs overlay for commonscomputing
#
# Overlays modify the global pkgs set. Anything that references
# `pkgs.<name>` (including NixOS service modules using `mkPackageOption`)
# automatically picks up our overrides without further config changes.
#
# Each override below should include a brief note about why we're overriding
# and when the override can be removed (e.g. when nixpkgs catches up).

final: prev: {
  # Override bluesky-pds to v0.4.219 (latest tag in bluesky-social/pds repo).
  #
  # As of 2026-04-26 nixpkgs-unstable ships 0.4.204. The deployed version on
  # z-space (from our pinned flake.lock) is even older at 0.4.182.
  #
  # Notable changes between 0.4.182 and 0.4.219:
  #   - Default PDS_BLOB_UPLOAD_LIMIT doubled to 100 MB (commit cc0e9ac)
  #   - Rate limits enabled by default (PR #308)
  #   - Node bumped to v20.20 (commit 0ef7817)
  #   - pdsadmin account commands replaced with goat (PR #313)
  #
  # Remove this override once nixpkgs ships bluesky-pds >= 0.4.219.
  bluesky-pds = prev.bluesky-pds.overrideAttrs (old: rec {
    version = "0.4.219";

    src = prev.fetchFromGitHub {
      owner = "bluesky-social";
      repo = "pds";
      tag = "v${version}";
      hash = "sha256-zXNg1rtXN9qdTBvRlSiPlRu6k1Pv3T8nhROsEarev5U=";
    };

    sourceRoot = "${src.name}/service";

    # pnpmDeps must be re-fetched whenever src changes because pnpm-lock.yaml
    # may have changed. The hash below was computed by running a build with
    # an empty hash and reading the correct one from the build failure.
    pnpmDeps = prev.fetchPnpmDeps {
      pname = "pds";
      inherit version src sourceRoot;
      pnpm = prev.pnpm_9;
      fetcherVersion = 2;
      hash = "sha256-n7UurqgR15vu1yNRXCWTWpEU42xgqVVaKurIMvt3XYk=";
    };
  });
}