improve rust programming with rust-analyzer lsp and gcc

This reverts commit bdd6c603c4.

The last update introduced instability for BIND when resolving,
apparently some broken trust chains in DNSSEC?

flake.lock

@@ -90,11 +90,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1696043447,
-        "narHash": "sha256-VbJ1dY5pVH2fX1bS+cT2+4+BYEk4lMHRP0+udu9G6tk=",
+        "lastModified": 1696360011,
+        "narHash": "sha256-HpPv27qMuPou4acXcZ8Klm7Zt0Elv9dgDvSJaomWb9Y=",
         "owner": "lnl7",
         "repo": "nix-darwin",
-        "rev": "792c2e01347cb1b2e7ec84a1ef73453ca86537d8",
+        "rev": "8b6ea26d5d2e8359d06278364f41fbc4b903b28a",
         "type": "github"
       },
       "original": {
@@ -111,11 +111,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1695864092,
-        "narHash": "sha256-Hu1SkFPqO7ND95AOzBkZE2jGXSYhfZ965C03O72Kbu8=",
+        "lastModified": 1697419184,
+        "narHash": "sha256-eRPjCyjdcqaME/baecZHyTQTn3k0AYFzN/S+u351FcE=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "19b62324663b6b9859caf7f335d232cf4f1f6a32",
+        "rev": "325e1f7f2e0eea44c27e5e8a3946c2461ec095f2",
         "type": "github"
       },
       "original": {
@@ -131,11 +131,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1696034364,
-        "narHash": "sha256-7giewUYqKhhfhKRxe2EPHCpSM0oMLuByW4RTRZl6Jfc=",
+        "lastModified": 1697243978,
+        "narHash": "sha256-ZhtaqhEFcYxxPNNm246uqVGJ/CiM6j8mK0xGIZ8Dk0c=",
         "owner": "bandithedoge",
         "repo": "nixpkgs-firefox-darwin",
-        "rev": "b1e4d451a15c34d45bfefb05137a20469399a2df",
+        "rev": "972388ef1f081def3398135dea9edbbede8a6435",
         "type": "github"
       },
       "original": {
@@ -147,11 +147,11 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1673956053,
-        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
         "type": "github"
       },
       "original": {
@@ -237,11 +237,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1696063111,
-        "narHash": "sha256-F2IJEbyH3xG0eqyAYn9JoV+niqNz+xb4HICYNkkviNI=",
+        "lastModified": 1697688028,
+        "narHash": "sha256-d9CAOd9W2iTrgB31a8Dvyp6Vgn/gxASCNrD4Z9yzUOY=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "ae896c810f501bf0c3a2fd7fc2de094dd0addf01",
+        "rev": "c5c1ea85181d2bb44e46e8a944a8a3f56ad88f19",
         "type": "github"
       },
       "original": {
@@ -369,11 +369,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1695830400,
-        "narHash": "sha256-gToZXQVr0G/1WriO83olnqrLSHF2Jb8BPcmCt497ro0=",
+        "lastModified": 1697456312,
+        "narHash": "sha256-roiSnrqb5r+ehnKCauPLugoU8S36KgmWraHgRqVYndo=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "8a86b98f0ba1c405358f1b71ff8b5e1d317f5db2",
+        "rev": "ca012a02bf8327be9e488546faecae5e05d7d749",
         "type": "github"
       },
       "original": {
@@ -383,29 +383,13 @@
         "type": "github"
       }
     },
-    "nixpkgs-keyd": {
-      "locked": {
-        "lastModified": 1690363189,
-        "narHash": "sha256-Zs0VkngOtQz7nIEO7Wi8AwGB4TBSex2KZAw784aOm2M=",
-        "owner": "JohnAZoidberg",
-        "repo": "nixpkgs",
-        "rev": "6591d332f93422e388ef6337f6b362b4ff8d0724",
-        "type": "github"
-      },
-      "original": {
-        "owner": "JohnAZoidberg",
-        "ref": "keyd-2.4.3",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1695825837,
-        "narHash": "sha256-4Ne11kNRnQsmSJCRSSNkFRSnHC4Y5gPDBIQGjjPfJiU=",
+        "lastModified": 1697226376,
+        "narHash": "sha256-cumLLb1QOUtWieUnLGqo+ylNt3+fU8Lcv5Zl+tYbRUE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5cfafa12d57374f48bcc36fda3274ada276cf69e",
+        "rev": "898cb2064b6e98b8c5499f37e81adbdf2925f7c5",
         "type": "github"
       },
       "original": {
@@ -433,11 +417,11 @@
     },
     "nur": {
       "locked": {
-        "lastModified": 1696080597,
-        "narHash": "sha256-fhf7+NT/xMwPZ/sRT30lnI04AHgf7tLPU4ClMux1nWA=",
+        "lastModified": 1697716025,
+        "narHash": "sha256-5gT33Zs2uGsiU43FNWN4GrRqNy/n+eOeGRapU9yy1Bs=",
         "owner": "nix-community",
         "repo": "nur",
-        "rev": "8783c360abc69f58d46a2929534ddd91eb41f3c6",
+        "rev": "9e80a4be10bd21688163db9b3d2c710e185a654e",
         "type": "github"
       },
       "original": {
@@ -466,11 +450,11 @@
     "nvim-tree-lua-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1695716495,
-        "narHash": "sha256-Fkchn7UuIHPmVFFrx1kzsE2lviJrAFAe9tHu73HnS/w=",
+        "lastModified": 1697497256,
+        "narHash": "sha256-Eu92ktyMEf7Oy96fEmWXeKxk2v08RFX8YQrSXRK3DgU=",
         "owner": "kyazdani42",
         "repo": "nvim-tree.lua",
-        "rev": "934469b9b6df369e198fb3016969e56393b0dc07",
+        "rev": "40b9b887d090d5da89a84689b4ca0304a9649f62",
         "type": "github"
       },
       "original": {
@@ -482,11 +466,11 @@
     "nvim-treesitter-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1696061053,
-        "narHash": "sha256-KR+VMYTVM2qsLPx412gySAKiGObhs+awbDJhWX72/wY=",
+        "lastModified": 1697700673,
+        "narHash": "sha256-wbK9krVQ0YbB3qbuyWf/f776KP3nITlwI8KLsJKjiXg=",
         "owner": "nvim-treesitter",
         "repo": "nvim-treesitter",
-        "rev": "dd4e2dbc002dfce109d621e8bdcd9d89438b0a32",
+        "rev": "eb3faef3a44641e5875581e901b0a8df8da2bde4",
         "type": "github"
       },
       "original": {
@@ -527,7 +511,6 @@
         "nix2vim": "nix2vim",
         "nixos-generators": "nixos-generators",
         "nixpkgs": "nixpkgs",
-        "nixpkgs-keyd": "nixpkgs-keyd",
         "null-ls-nvim-src": "null-ls-nvim-src",
         "nur": "nur",
         "nvim-lspconfig-src": "nvim-lspconfig-src",
@@ -672,11 +655,11 @@
     "tree-sitter-bash": {
       "flake": false,
       "locked": {
-        "lastModified": 1695263734,
-        "narHash": "sha256-dJUJGrpBWBLjcqiqxCnJ/MENwa2+uxAmQD71aYloxsw=",
+        "lastModified": 1696959291,
+        "narHash": "sha256-VP7rJfE/k8KV1XN1w5f0YKjCnDMYU1go/up0zj1mabM=",
         "owner": "tree-sitter",
         "repo": "tree-sitter-bash",
-        "rev": "fd4e40dab883d6456da4d847de8321aee9c80805",
+        "rev": "7331995b19b8f8aba2d5e26deb51d2195c18bc94",
         "type": "github"
       },
       "original": {
@@ -738,11 +721,11 @@
     "tree-sitter-python": {
       "flake": false,
       "locked": {
-        "lastModified": 1695282953,
-        "narHash": "sha256-gRhD3M1DkmwYQDDnyRq6QMTWUJUY0vbetGnN+pBTd84=",
+        "lastModified": 1696990675,
+        "narHash": "sha256-nQ4HU5ysQjht9USFGRmW/+PLFTzPgi+6G68/uupMMRk=",
         "owner": "tree-sitter",
         "repo": "tree-sitter-python",
-        "rev": "a901729099257aac932d79c60adb5e8a53fa7e6c",
+        "rev": "82f5c9937fe4300b4bec3ee0e788d642c77aab2c",
         "type": "github"
       },
       "original": {
@@ -807,11 +790,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1696053802,
-        "narHash": "sha256-8TTbJbtGDz1MstExrVQe56eXZpovvZv6G6L6q/4NOKg=",
+        "lastModified": 1697459493,
+        "narHash": "sha256-HH8ePJIVAsiDHIdS4qnKQ9o4X0KTVGA9cfHBplKqpfs=",
         "owner": "nix-community",
         "repo": "NixOS-WSL",
-        "rev": "cadde47d123d1a534c272b04a7582f1d11474c48",
+        "rev": "b63b328577f1cb5839f8ecc4fd05040335d4a55a",
         "type": "github"
       },
       "original": {

flake.nix

@@ -7,13 +7,9 @@
     # Used for system packages
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 
-    # Update to keyd 2.4.3 not yet in nixpkgs-unstable
-    # https://github.com/NixOS/nixpkgs/pull/245327
-    nixpkgs-keyd.url = "github:JohnAZoidberg/nixpkgs/keyd-2.4.3";
-
     # Used for MacOS system config
     darwin = {
-      url = "github:/lnl7/nix-darwin/master";
+      url = "github:lnl7/nix-darwin/master";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
@@ -232,7 +228,6 @@
         (import ./overlays/betterlockscreen.nix)
         (import ./overlays/age.nix inputs)
         (import ./overlays/proton-ge.nix inputs)
-        (import ./overlays/keyd.nix inputs)
       ];
 
       # System types to support.

hosts/tempest/default.nix

@@ -99,6 +99,7 @@ inputs.nixpkgs.lib.nixosSystem {
       keybase.enable = true;
       mullvad.enable = false;
       nixlang.enable = true;
+      rust.enable = true;
       yt-dlp.enable = true;
       gaming = {
         dwarf-fortress.enable = true;

modules/common/applications/firefox.nix

@@ -74,6 +74,8 @@
             "media.ffmpeg.vaapi.enabled" =
               true; # Enable hardware video acceleration
             "cookiebanners.ui.desktop.enabled" = true; # Reject cookie popups
+            "devtools.command-button-screenshot.enabled" =
+              true; # Scrolling screenshot of entire page
             "svg.context-properties.content.enabled" = true; # Sidebery styling
           };
           userChrome = ''

modules/common/neovim/config/lsp.nix

@@ -1,76 +1,97 @@
-{ pkgs, dsl, ... }: {
+{ pkgs, lib, config, dsl, ... }: {
 
-  plugins = [
-    pkgs.vimPlugins.nvim-lspconfig
-    pkgs.vimPlugins.lsp-colors-nvim
-    pkgs.vimPlugins.null-ls-nvim
-  ];
+  # Terraform optional because non-free
+  options.useTerraform = lib.mkEnableOption "Whether to enable Terraform LSP";
 
-  use.lspconfig.lua_ls.setup = dsl.callWith {
-    settings = { Lua = { diagnostics = { globals = [ "vim" "hs" ]; }; }; };
-    capabilities = dsl.rawLua "require('cmp_nvim_lsp').default_capabilities()";
-    cmd = [ "${pkgs.lua-language-server}/bin/lua-language-server" ];
-  };
+  config =
 
-  use.lspconfig.nil_ls.setup = dsl.callWith {
-    cmd = [ "${pkgs.nil}/bin/nil" ];
-    capabilities = dsl.rawLua "require('cmp_nvim_lsp').default_capabilities()";
-  };
+    let
 
-  use.lspconfig.pyright.setup = dsl.callWith {
-    cmd = [ "${pkgs.pyright}/bin/pyright-langserver" "--stdio" ];
-  };
+      terraformFormat = if config.useTerraform then ''
+        require("null-ls").builtins.formatting.terraform_fmt.with({
+            command = "${pkgs.terraform}/bin/terraform",
+            extra_filetypes = { "hcl" },
+        }),
+      '' else
+        "";
 
-  use.lspconfig.terraformls.setup =
-    dsl.callWith { cmd = [ "${pkgs.terraform-ls}/bin/terraform-ls" "serve" ]; };
+    in {
+      plugins = [
+        pkgs.vimPlugins.nvim-lspconfig
+        pkgs.vimPlugins.lsp-colors-nvim
+        pkgs.vimPlugins.null-ls-nvim
+      ];
 
-  vim.api.nvim_create_augroup = dsl.callWith [ "LspFormatting" { } ];
+      use.lspconfig.lua_ls.setup = dsl.callWith {
+        settings = { Lua = { diagnostics = { globals = [ "vim" "hs" ]; }; }; };
+        capabilities =
+          dsl.rawLua "require('cmp_nvim_lsp').default_capabilities()";
+        cmd = [ "${pkgs.lua-language-server}/bin/lua-language-server" ];
+      };
 
-  lua = ''
-    ${builtins.readFile ./lsp.lua}
+      use.lspconfig.nil_ls.setup = dsl.callWith {
+        cmd = [ "${pkgs.nil}/bin/nil" ];
+        capabilities =
+          dsl.rawLua "require('cmp_nvim_lsp').default_capabilities()";
+      };
 
-    -- Prevent infinite log size (change this when debugging)
-    vim.lsp.set_log_level("off")
+      use.lspconfig.pyright.setup = dsl.callWith {
+        cmd = [ "${pkgs.pyright}/bin/pyright-langserver" "--stdio" ];
+      };
 
-    require("null-ls").setup({
-        sources = {
-            require("null-ls").builtins.formatting.stylua.with({ command = "${pkgs.stylua}/bin/stylua" }),
-            require("null-ls").builtins.formatting.black.with({ command = "${pkgs.black}/bin/black" }),
-            require("null-ls").builtins.diagnostics.ruff.with({ command = "${pkgs.ruff}/bin/ruff" }),
-            require("null-ls").builtins.formatting.fish_indent.with({ command = "${pkgs.fish}/bin/fish_indent" }),
-            require("null-ls").builtins.formatting.nixfmt.with({ command = "${pkgs.nixfmt}/bin/nixfmt" }),
-            require("null-ls").builtins.formatting.rustfmt.with({ command = "${pkgs.rustfmt}/bin/rustfmt" }),
-            require("null-ls").builtins.diagnostics.shellcheck.with({ command = "${pkgs.shellcheck}/bin/shellcheck" }),
-            require("null-ls").builtins.formatting.shfmt.with({
-                command = "${pkgs.shfmt}/bin/shfmt",
-                extra_args = { "-i", "4", "-ci" },
-            }),
-            require("null-ls").builtins.formatting.terraform_fmt.with({
-                command = "${pkgs.terraform}/bin/terraform",
-                extra_filetypes = { "hcl" },
-            }),
-        },
+      use.lspconfig.terraformls.setup = dsl.callWith {
+        cmd = [ "${pkgs.terraform-ls}/bin/terraform-ls" "serve" ];
+      };
 
-        on_attach = function(client, bufnr)
-            if client.supports_method("textDocument/formatting") then
-                -- Auto-format on save
-                vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
-                vim.api.nvim_create_autocmd("BufWritePre", {
-                    group = augroup,
-                    buffer = bufnr,
-                    callback = function()
-                        vim.lsp.buf.format({ bufnr = bufnr })
-                    end,
-                })
-                -- Use internal formatting for bindings like gq.
-                vim.api.nvim_create_autocmd("LspAttach", {
-                    callback = function(args)
-                        vim.bo[args.buf].formatexpr = nil
-                    end,
-                })
-            end
-        end,
-    })
-  '';
+      use.lspconfig.rust_analyzer.setup =
+        dsl.callWith { cmd = [ "${pkgs.rust-analyzer}/bin/rust-analyzer" ]; };
+
+      vim.api.nvim_create_augroup = dsl.callWith [ "LspFormatting" { } ];
+
+      lua = ''
+        ${builtins.readFile ./lsp.lua}
+
+        -- Prevent infinite log size (change this when debugging)
+        vim.lsp.set_log_level("off")
+
+        require("null-ls").setup({
+            sources = {
+                require("null-ls").builtins.formatting.stylua.with({ command = "${pkgs.stylua}/bin/stylua" }),
+                require("null-ls").builtins.formatting.black.with({ command = "${pkgs.black}/bin/black" }),
+                require("null-ls").builtins.diagnostics.ruff.with({ command = "${pkgs.ruff}/bin/ruff" }),
+                require("null-ls").builtins.formatting.fish_indent.with({ command = "${pkgs.fish}/bin/fish_indent" }),
+                require("null-ls").builtins.formatting.nixfmt.with({ command = "${pkgs.nixfmt}/bin/nixfmt" }),
+                require("null-ls").builtins.formatting.rustfmt.with({ command = "${pkgs.rustfmt}/bin/rustfmt" }),
+                require("null-ls").builtins.diagnostics.shellcheck.with({ command = "${pkgs.shellcheck}/bin/shellcheck" }),
+                require("null-ls").builtins.formatting.shfmt.with({
+                    command = "${pkgs.shfmt}/bin/shfmt",
+                    extra_args = { "-i", "4", "-ci" },
+                }),
+                ${terraformFormat}
+            },
+
+            on_attach = function(client, bufnr)
+                if client.supports_method("textDocument/formatting") then
+                    -- Auto-format on save
+                    vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
+                    vim.api.nvim_create_autocmd("BufWritePre", {
+                        group = augroup,
+                        buffer = bufnr,
+                        callback = function()
+                            vim.lsp.buf.format({ bufnr = bufnr })
+                        end,
+                    })
+                    -- Use internal formatting for bindings like gq.
+                    vim.api.nvim_create_autocmd("LspAttach", {
+                        callback = function(args)
+                            vim.bo[args.buf].formatexpr = nil
+                        end,
+                    })
+                end
+            end,
+        })
+      '';
+
+    };
 
 }

modules/common/neovim/config/syntax.nix

@@ -24,7 +24,7 @@
     pkgs.vimPlugins.vim-helm
     pkgs.baleia-nvim # Clean ANSI from kitty scrollback
     # pkgs.hmts-nvim # Tree-sitter injections for home-manager
-    (pkgs.vimUtils.buildVimPluginFrom2Nix {
+    (pkgs.vimUtils.buildVimPlugin {
       pname = "nmasur";
       version = "0.1";
       src = ../plugin;

modules/common/neovim/config/tree.nix

@@ -63,7 +63,6 @@
     '';
     view = { # Set look and feel
       width = 30;
-      hide_root_folder = false;
       side = "left";
       number = false;
       relativenumber = false;

modules/common/neovim/default.nix

@@ -5,6 +5,7 @@ let
   neovim = import ./package {
     inherit pkgs;
     colors = config.theme.colors;
+    useTerraform = config.terraform.enable;
   };
 
 in {

modules/common/neovim/package/default.nix

@@ -26,13 +26,13 @@
 #   ] ++ extraConfig;
 # }
 
-{ pkgs, colors, ... }:
+{ pkgs, colors, useTerraform ? false, ... }:
 
 # Comes from nix2vim overlay:
 # https://github.com/gytis-ivaskevicius/nix2vim/blob/master/lib/neovim-builder.nix
 pkgs.neovimBuilder {
   package = pkgs.neovim-unwrapped;
-  inherit colors;
+  inherit colors useTerraform;
   imports = [
     ../config/align.nix
     ../config/bufferline.nix

modules/common/programming/default.nix

@@ -6,6 +6,7 @@
     ./lua.nix
     ./nix.nix
     ./python.nix
+    ./rust.nix
     ./terraform.nix
   ];
 

modules/common/programming/rust.nix

@@ -0,0 +1,17 @@
+{ config, pkgs, lib, ... }: {
+
+  options.rust.enable = lib.mkEnableOption "Rust programming language.";
+
+  config = lib.mkIf config.rust.enable {
+
+    home-manager.users.${config.user} = {
+
+      home.packages = with pkgs; [ cargo rustc gcc ];
+
+      programs.fish.shellAbbrs = { };
+
+    };
+
+  };
+
+}

modules/common/programming/terraform.nix

@@ -3,6 +3,7 @@
   options.terraform.enable = lib.mkEnableOption "Terraform tools.";
 
   config = lib.mkIf config.terraform.enable {
+    unfreePackages = [ "terraform" ];
 
     home-manager.users.${config.user} = {
       programs.fish.shellAbbrs = {

modules/nixos/hardware/keyboard.nix

@@ -18,14 +18,7 @@
       keyboards = {
         default = {
           ids = [ "*" ];
-          settings = {
-            main = { capslock = "overload(control, esc)"; };
-
-            # Fix: ctrl-click sends escape afterwards
-            # Suppresses escape if held for more than 500ms
-            # https://github.com/rvaiya/keyd/issues/424
-            global = { overload_tap_timeout = 500; };
-          };
+          settings = { main = { capslock = "overload(control, esc)"; }; };
         };
       };
     };

modules/nixos/system/doas.nix

@@ -26,9 +26,14 @@
       };
     };
 
-    # Alias sudo to doas for convenience
-    home-manager.users.${config.user}.programs.fish.shellAliases = {
-      sudo = "doas";
+    home-manager.users.${config.user}.programs = {
+
+      # Alias sudo to doas for convenience
+      fish.shellAliases = { sudo = "doas"; };
+
+      # Disable overriding our sudo alias with a TERMINFO alias
+      kitty.settings.shell_integration = "no-sudo";
+
     };
 
   };

overlays/caddy.nix

@@ -31,7 +31,7 @@ in {
 
     src = prev.caddy.src;
 
-    vendorSha256 = "sha256:mwIsWJYKuEZpOU38qZOG1LEh4QpK4EO0/8l4UGsroU8=";
+    vendorSha256 = "sha256:0KfMzTt4lNzVfoCfDHhC2ue3OWICkFCHuhREiM2JPMY=";
 
     overrideModAttrs = (_: {
       preBuild = ''

overlays/keyd.nix

@@ -1,6 +0,0 @@
-# Use latest PR of keyd to update to 2.4.3
-# https://github.com/NixOS/nixpkgs/pull/245327
-
-inputs: _final: prev: {
-  inherit (inputs.nixpkgs-keyd.legacyPackages.${prev.system}) keyd;
-}

overlays/neovim-plugins.nix

@@ -9,7 +9,7 @@ let
 
   # Package plugin - for plugins not found in nixpkgs at all
   plugin = pname: src:
-    prev.vimUtils.buildVimPluginFrom2Nix {
+    prev.vimUtils.buildVimPlugin {
       inherit pname src;
       version = "master";
     };

templates/poetry/flake.nix

@@ -5,7 +5,7 @@
   inputs.nixpkgs.url = "github:NixOS/nixpkgs";
   inputs.poetry2nix.url = "github:nix-community/poetry2nix";
 
-  outputs = { nixpkgs, flake-utils, poetry2nix }:
+  outputs = { self, nixpkgs, flake-utils, poetry2nix }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs {

templates/python/flake.nix

@@ -11,7 +11,7 @@
     inputs.pypi-deps-db.follows = "pypi-deps-db";
   };
 
-  outputs = { nixpkgs, mach-nix }:
+  outputs = { self, nixpkgs, mach-nix }:
     let
       supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-darwin" ];
       forAllSystems = f:

templates/rust/flake.nix

@@ -0,0 +1,20 @@
+{
+  description = "Basic Rust project";
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+  outputs = { self, nixpkgs }:
+    let
+      forAllSystems = nixpkgs.lib.genAttrs [
+        "x86_64-linux"
+        "x86_64-darwin"
+        "aarch64-linux"
+        "aarch64-darwin"
+      ];
+    in {
+      devShells = forAllSystems (system:
+        let pkgs = import nixpkgs { inherit system; };
+        in {
+          default =
+            pkgs.mkShell { buildInputs = with pkgs; [ gcc rustc cargo ]; };
+        });
+    };
+}