Now that RFC 166 is accepted, let's commence with the implementation!

Here's a very rough todo-list, most of which will be fairly quick.

• Update README to mention WIP state: readme: Add status note #154
• Create Nix formatting GitHub team: https://github.com/orgs/NixOS/teams/nix-formatting/members
  • Add @Sereja313 to the team, couldn't do that myself since they're not already in the organisation. This was requested in the issue below
• Move repo under NixOS org: Transfer to NixOS GitHub organisation #155
• Decide on merge rules: https://github.com/NixOS/nixfmt/rules/523613?ref=refs%2Fheads%2Fmaster
• Create a team page in the repo: Create team document #156
• Create a GitHub project board
  Let's only start using one if we feel the need for it
• Create a nixos.org page for the team: Add formatting team nixos-homepage#1337
• Move the RFCs initial standard format into the repo: import initial standard formatting #158
• Merge RFC 101/166 style #118
• Set up automated testing
  • Run test suite in CI: ci: run tests #172
  • Each PR needs to be tested on the entirety of Nixpkgs: Test on Nixpkgs #163
• Fully review the code
  • Check that it conforms to the specification
  • Document sufficiently
  • Simplify if possible
• Tool documentation: Document nixfmt-tree in our README #314
• Create a release and announce it: Stable release #272
  • Marketing, celebration, Discourse, blog post, NixCon talk, etc.
  • Update Nixpkgs and Nix docs, e.g. contributor guide, etc.
• Update nix fmt to point to nixfmt: nix fmt: call nixfmt-rfc-style nix#11252 Edit: This is not a priority for the formatting team, nor the nix team
• Reformat Nixpkgs: Reformat Nixpkgs nixpkgs#322520
  • Also on other repos
  • Also, Nix code in documentation and elsewhere

Ping @piegamesde @tomberek @0x4A6F @Sereja313 @dasJ