flake: switch to nixfmt-rfc-style

Flake lock file updates:

• Updated input 'artemist-packages':
    'git+https://git.mildlyfunctional.gay/artemist/packages.git?ref=refs/heads/canon&rev=be4c446e1dc3391b353b07a701bed21db5b025bb' (2024-03-28)
  → 'git+https://git.mildlyfunctional.gay/artemist/packages.git?ref=refs/heads/canon&rev=4dc6a6a61ae68c559f56f28c778ddb1ebc8c9f9e' (2024-06-06)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/e2dd4e18cc1c7314e24154331bae07df76eb582f' (2024-05-26)
  → 'github:nixos/nixpkgs/4284c2b73c8bce4b46a6adf23e16d9e2ec8da4bb' (2024-07-05)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/3b6e1e221b04965427f3eee11fd6b6ea7b5f579b' (2024-05-26)
  → 'github:oxalica/rust-overlay/3eed08a074cd2000884a69d448d70da2843f7103' (2024-07-07)
• Removed input 'rust-overlay/flake-utils'

flake.lock

@@ -10,11 +10,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1711597760,
-        "narHash": "sha256-SQ5ixJU33jjgSOrloFkuhvbKPy2FVREVNc96caEHYAY=",
+        "lastModified": 1717636858,
+        "narHash": "sha256-4NTFcQODSvySNCBz++O5SrcSFwU/xyqDS++s6HIzUEU=",
         "ref": "refs/heads/canon",
-        "rev": "be4c446e1dc3391b353b07a701bed21db5b025bb",
-        "revCount": 46,
+        "rev": "4dc6a6a61ae68c559f56f28c778ddb1ebc8c9f9e",
+        "revCount": 49,
         "type": "git",
         "url": "https://git.mildlyfunctional.gay/artemist/packages.git"
       },
@@ -25,11 +25,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1716715802,
-        "narHash": "sha256-usk0vE7VlxPX8jOavrtpOqphdfqEQpf9lgedlY/r66c=",
+        "lastModified": 1720181791,
+        "narHash": "sha256-i4vJL12/AdyuQuviMMd1Hk2tsGt02hDNhA0Zj1m16N8=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "e2dd4e18cc1c7314e24154331bae07df76eb582f",
+        "rev": "4284c2b73c8bce4b46a6adf23e16d9e2ec8da4bb",
         "type": "github"
       },
       "original": {
@@ -49,19 +49,16 @@
     },
     "rust-overlay": {
       "inputs": {
-        "flake-utils": [
-          "utils"
-        ],
         "nixpkgs": [
           "nixpkgs"
         ]
       },
       "locked": {
-        "lastModified": 1716689906,
-        "narHash": "sha256-tQYQM9zT4P1fFf739/AIZuTIGPxtEIpV7K7VieU60Io=",
+        "lastModified": 1720318855,
+        "narHash": "sha256-w3CCVK9LJ5aznXGkO1IyAlbvMNJfyA+dBF7Z1Zwx1LA=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "3b6e1e221b04965427f3eee11fd6b6ea7b5f579b",
+        "rev": "3eed08a074cd2000884a69d448d70da2843f7103",
         "type": "github"
       },
       "original": {

flake.nix

@@ -13,8 +13,16 @@
       inputs.flake-utils.follows = "utils";
     };
   };
-  outputs = { self, nixpkgs, utils, artemist-packages, rust-overlay }:
-    utils.lib.eachDefaultSystem (system:
+  outputs =
+    {
+      self,
+      nixpkgs,
+      utils,
+      artemist-packages,
+      rust-overlay,
+    }:
+    utils.lib.eachDefaultSystem (
+      system:
       let
         pkgs = import nixpkgs {
           inherit system;
@@ -23,9 +31,9 @@
             rust-overlay.overlays.default
           ];
         };
-      in rec {
-        devShells.zephyr =
-          artemist-packages.devShells.${system}.zephyr.override {
+      in
+      rec {
+        devShells.zephyr = artemist-packages.devShells.${system}.zephyr.override {
           toolchains = with pkgs.zephyrPackages.toolchains; [
             arm-zephyr-eabi
             riscv64-zephyr-elf
@@ -43,9 +51,14 @@
           zephyrSrc = null;
           modules = [ ];
         };
-        devShells.rust-embedded = let
+        devShells.rust-embedded =
+          let
             rust = pkgs.rust-bin.stable.latest.default.override {
-            extensions = [ "rust-src" "llvm-tools-preview" "clippy" ];
+              extensions = [
+                "rust-src"
+                "llvm-tools-preview"
+                "clippy"
+              ];
               # just use all of them, why not
               targets = [
                 "thumbv6m-none-eabi"
@@ -66,7 +79,8 @@
               };
               cargoHash = "sha256-dhPp93AH4VlOVJWXMMUwv8b53vLPdBY3WyaXE4kcEm4=";
             };
-        in with pkgs;
+          in
+          with pkgs;
           mkShell {
             packages = [
               cargo-binutils
@@ -82,13 +96,29 @@
             ];
             RUST_SRC_PATH = "${rust}/lib/rustlib/src/rust/library";
           };
-        devShells.avr = with pkgs;
+        devShells.rust =
+          with pkgs;
+          mkShell {
+            nativeBuildInputs = [
+              rustc
+              cargo
+              rustfmt
+              clippy
+            ];
+            RUST_SRC_PATH = "${rust.packages.stable.rustPlatform.rustLibSrc}";
+          };
+        devShells.avr =
+          with pkgs;
           pkgsCross.avr.mkShell {
-            packages = [ avrdude gnumake ];
+            packages = [
+              avrdude
+              gnumake
+            ];
 
             LIBC = pkgsCross.avr.avrlibc;
           };
-        devShells.emoji = with pkgs;
+        devShells.emoji =
+          with pkgs;
           mkShell {
             packages = [
               chromedriver
@@ -100,7 +130,9 @@
               python3Packages.trio
               python3Packages.gql
               (python3Packages.selenium.overrideAttrs (old: {
-                postInstall = old.postInstall + ''
+                postInstall =
+                  old.postInstall
+                  + ''
                     for ver in v85 v120 v121 v122; do
                       DEVTOOLS=../common/devtools/chromium/$ver
                       for proto in js browser; do
@@ -117,15 +149,15 @@
                     done
                   '';
 
-                nativeBuildInputs = old.nativeBuildInputs
-                  ++ [ python3Packages.inflection ];
+                nativeBuildInputs = old.nativeBuildInputs ++ [ python3Packages.inflection ];
               }))
             ];
 
             CHROME = "${chromium}/bin/chromium";
           };
         devShells.typst = with pkgs; mkShell { packages = [ typst ]; };
-        formatter = pkgs.nixfmt;
-      });
+        formatter = pkgs.nixfmt-rfc-style;
+      }
+    );
 
 }

nix/aarch64_be.nix

@@ -12,4 +12,5 @@ let
       }
     ];
   };
-in system.config.system.build.sdImage
+in
+system.config.system.build.sdImage

rp2040/shell.nix

@@ -7,7 +7,8 @@ let
     rev = "1.4.0";
     sha256 = "sha256-i3IAaNcd0EfKNvU104a776O1poDAChlx1m+nP8iFn8E=";
   };
-in mkShell rec {
+in
+mkShell rec {
   name = "pico-env";
 
   nativeBuildInputs = [ pkg-config ];

rust/.envrc

@@ -0,0 +1 @@
+use flake ..#rust