Use Gren via nix flakes.

You can use github:gren-lang/nix most places you'd use a package name or URL. For example:

• devbox: devbox add github:gren-lang/nix
• nix shell: nix shell github:gren-lang/nix

You can point to a specific ref (commit, tag, branch) like this:

• github:gren-lang/nix/main
• github:gren-lang/nix/0.4.5

• Start a dev shell: nix develop
• Update the rev field in flake.nix to the full commit hash you wish to build
• Update flake lock file: nix flake update (this may or may not update flake.lock)
• Test with nix build .# which should build an executable you can test at ./result/bin/gren
• Commit the updated flake.nix and flake.lock files
• git tag -a [version]
• git push origin main --tags
• Test with nix shell github:gren-lang/nix/[version]