more refactors & outsource some things (#477)

* tree-wide: drop flake-parts

* drop nixinate

* justfile: cleanup

* drop treefmt-nix

* doc: update READMEs

* flake: cleanup

* seth: don't use `./.`

* modules/nixos,darwin: bundle all modules

They all depend on each other anyways so

* systems: manually import internal modules

* seth: use riff module from nix-exprs

* flake: back to flake-parts

* Revert "flake: back to flake-parts"

This reverts commit 35334882f7c0c23991a4efd65ea08b216006b2b0.

Saving the last commit so I can go back if I want

* flake: use lib.const

this looks better...right?

* flake: declare systems like a normal person

5 files changed, 0 insertions, 134 deletions

diff --git a/dev/README.md b/dev/README.md
deleted file mode 100644
index 58d8360..0000000
--- a/dev/README.md
+++ /dev/null
@@ -1,15 +0,0 @@
-# ./dev/
-
-## dev-shells.nix
-
-A misnomer - this only contains one shell
-
-## hydra-jobs.nix
-
-Jobs I want to run in CI. Currently built by
-[`nix-fast-build`](https://github.com/Mic92/nix-fast-build)
-
-## treefmt.nix
-
-[treefmt](https://github.com/numtide/treefmt) configuration via
-[treefmt-nix](https://github.com/numtide/treefmt-nix)
diff --git a/dev/default.nix b/dev/default.nix
deleted file mode 100644
index e74789e..0000000
--- a/dev/default.nix
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  imports = [
-    ./dev-shells.nix
-    ./hydra-jobs.nix
-    ./treefmt.nix
-  ];
-}
diff --git a/dev/dev-shells.nix b/dev/dev-shells.nix
deleted file mode 100644
index 9461970..0000000
--- a/dev/dev-shells.nix
+++ /dev/null
@@ -1,43 +0,0 @@
-{
-  perSystem =
-    {
-      lib,
-      pkgs,
-      inputs',
-      self',
-      ...
-    }:
-    let
-      nixos-rebuild = pkgs.nixos-rebuild.override { nix = pkgs.lix; };
-      darwin-rebuild = inputs'.nix-darwin.packages.darwin-rebuild.override { nix = pkgs.lix; };
-    in
-    {
-      devShells.default = pkgs.mkShellNoCC {
-        packages =
-          [
-            # we want to make sure we have the same
-            # nix behavior across machines
-            pkgs.lix
-
-            # format + lint
-            pkgs.actionlint
-            self'.formatter
-            pkgs.nixfmt-rfc-style
-            pkgs.nil
-            pkgs.statix
-
-            # utils
-            pkgs.fzf # for just
-            pkgs.just
-
-            # terranix
-            self'.packages.opentofu
-          ]
-          ++ lib.optional pkgs.stdenv.isDarwin darwin-rebuild # see above comment about {l,n}ix
-          ++ lib.optionals pkgs.stdenv.isLinux [
-            nixos-rebuild # ditto
-            inputs'.agenix.packages.agenix
-          ];
-      };
-    };
-}
diff --git a/dev/hydra-jobs.nix b/dev/hydra-jobs.nix
deleted file mode 100644
index 7b55f57..0000000
--- a/dev/hydra-jobs.nix
+++ /dev/null
@@ -1,50 +0,0 @@
-{
-  lib,
-  self,
-  withSystem,
-  ...
-}:
-let
-  # architecture of "main" CI machine
-  ciSystem = "x86_64-linux";
-
-  /**
-    Map a NixOS, nix-darwin, or home-manager configuration to a final derivation
-
-    # Type
-
-    ```
-    derivFromCfg :: AttrSet -> Attrset
-    ```
-  */
-  derivFromCfg = deriv: deriv.config.system.build.toplevel or deriv.activationPackage;
-
-  /**
-    Map an attribute set of NixOS, nix-darwin, or home-manager configurations to their final derivation
-
-    # Type
-
-    ```
-    mapCfgsToDerivs :: AttrSet -> Attrset
-    ```
-  */
-  mapCfgsToDerivs = lib.mapAttrs (lib.const derivFromCfg);
-in
-{
-  flake.hydraJobs = withSystem ciSystem (
-    { pkgs, self', ... }:
-    {
-      # i don't care to run these for each system, as they should be the same
-      # and don't need to be cached
-      inherit (self') checks;
-      inherit (self') devShells;
-
-      darwinConfigurations = mapCfgsToDerivs self.darwinConfigurations;
-      homeConfigurations = mapCfgsToDerivs self.homeConfigurations;
-      nixosConfigurations = mapCfgsToDerivs self.nixosConfigurations // {
-        # please add aarch64 runners github...please...
-        atlas = lib.deepSeq (derivFromCfg self.nixosConfigurations.atlas).drvPath pkgs.emptyFile;
-      };
-    }
-  );
-}
diff --git a/dev/treefmt.nix b/dev/treefmt.nix
deleted file mode 100644
index f18b391..0000000
--- a/dev/treefmt.nix
+++ /dev/null
@@ -1,19 +0,0 @@
-{ inputs, ... }:
-{
-  imports = [ inputs.treefmt-nix.flakeModule ];
-
-  perSystem = {
-    treefmt = {
-      projectRootFile = ".git/config";
-
-      # TODO: add actionlint
-      # https://github.com/numtide/treefmt-nix/pull/146
-      programs = {
-        deadnix.enable = true;
-        just.enable = true;
-        nixfmt.enable = true;
-        statix.enable = true;
-      };
-    };
-  };
-}