Roadmap

More fetcher support — specifically prefetchers with structured data output (such as JSON); others could be supported but much lower priority so if you would like to see a specific fetcher, please write or fix the nix-prefetch-$FOO with structured data output for upstream Nixpkgs, & then let us know

Flyspray module for NixOS as a bug tracker (already packaged by toastal, module partway done)

nixtamal gc + per-project links to help mitigate garbage collection of fetches (especially in rebase workflows which need to travel back to old commits that might be on a different version)

nixtamal import which can pull in flakes, npins, or niv lock files

nixtamal run which would wrap nix run --file so you can run a Nix application with a manifest file or perhaps a simpler API but similar in order to be able to run Nix applications beyond the scope of what is supported by the flake input URI + packages schema to cover missing VCSs (or nix-run needs extension)