juspay Haskell + Nix with haskell-flake
Use haskell-flake — a flake-parts module. Start from haskell-template. Requires a .cabal or cabal.project file; haskell-flake scans for it automatically.
Starting a new project
You MUST use git clone https://github.com/srid/haskell-template <project-dir> to start a new project. Do NOT fetch individual files, do NOT use om init, do NOT write flake.nix from scratch. Clone the template, then rename the package in .cabal and nix/modules/flake/haskell.nix.
Project structure
Projects based on haskell-template use nixos-unified autowiring. Do NOT write Nix configuration inline in flake.nix. The flake.nix delegates entirely to nixos-unified, and all Nix configuration goes in ./nix/modules/flake/*.nix files.
Docs
- haskell-flake guide: https://community.flake.parts/haskell-flake
- haskell-flake options: https://flake.parts/options/haskell-flake
- haskell-template: https://github.com/srid/haskell-template