c_.nix

@@ -0,0 +1,100 @@
+# a small helper that only builds on top of builtins functions
+{src}@inputs:
+builtins // (let 
+formatSecondsSinceEpoch = t:
+let
+rem = x: y: x - x / y * y;
+days = t / 86400;
+secondsInDay = rem t 86400;
+hours = secondsInDay / 3600;
+minutes = (rem secondsInDay 3600) / 60;
+seconds = rem t 60;
+
+# Courtesy of https://stackoverflow.com/a/32158604.
+z = days + 719468;
+era = (if z >= 0 then z else z - 146096) / 146097;
+doe = z - era * 146097;
+yoe = (doe - doe / 1460 + doe / 36524 - doe / 146096) / 365;
+y = yoe + era * 400;
+doy = doe - (365 * yoe + yoe / 4 - yoe / 100);
+mp = (5 * doy + 2) / 153;
+d = doy - (153 * mp + 2) / 5 + 1;
+m = mp + (if mp < 10 then 3 else -9);
+y' = y + (if m <= 2 then 1 else 0);
+
+pad = s: if builtins.stringLength s < 2 then "0" + s else s;
+in "${toString y'}${pad (toString m)}${pad (toString d)}${pad (toString hours)}"
++ "${pad (toString minutes)}${pad (toString seconds)}";
+
+fetchTree =
+# this is the value of flake.lock#lock.nodes.${input_name}.locked
+{type
+, host? ""
+, owner? ""
+, repo? ""
+, rev? ""
+, submodules? ""
+, path? ""
+, narHash? null
+, lastModified? 0
+}@info:
+if info.type == "github" then
+{ outPath =
+  fetchTarball
+    ({ url = "https://api.${info.host or "github.com"}/repos/"
+     + "${info.owner}/${info.repo}/tarball/${info.rev}"; }
+     // (if info ? narHash then { sha256 = info.narHash; } else {})
+    );
+  rev = info.rev;
+  shortRev = builtins.substring 0 7 info.rev;
+  lastModified = info.lastModified;
+  lastModifiedDate = formatSecondsSinceEpoch info.lastModified;
+  narHash = info.narHash;
+}
+else if info.type == "git" then
+{ outPath =
+  builtins.fetchGit
+    ({ url = info.url; }
+     // (if info ? rev then { inherit (info) rev; } else {})
+     // (if info ? ref then { inherit (info) ref; } else {})
+     // (if info ? submodules then { inherit (info) submodules; } else {})
+    );
+  lastModified = info.lastModified;
+  lastModifiedDate = formatSecondsSinceEpoch info.lastModified;
+  narHash = info.narHash;
+} // (if info ? rev then {
+rev = info.rev;
+shortRev = builtins.substring 0 7 info.rev;
+} else {
+})
+else if info.type == "path" then
+{ outPath = builtins.path { 
+  path = if builtins.substring 0 1 info.path != "/"
+    then src + ("/" + info.path)  # make this absolute path by prepending ./
+    else info.path; # it's already an absolute path
+                          };
+narHash = info.narHash;
+}
+else if info.type == "tarball" then
+{ outPath =
+  fetchTarball
+    ({ inherit (info) url; }
+     // (if info ? narHash then { sha256 = info.narHash; } else {})
+    );
+}
+else if info.type == "gitlab" then
+{ inherit (info) rev narHash lastModified;
+  outPath =
+    fetchTarball
+    ({ url = "https://${info.host or "gitlab.com"}/api/v4/projects/${info.owner}%2F${info.repo}/repository/archive.tar.gz?sha=${info.rev}"; }
+     // (if info ? narHash then { sha256 = info.narHash; } else {})
+    );
+  shortRev = builtins.substring 0 7 info.rev;
+}
+else
+# FIXME: add Mercurial, tarball inputs.
+throw "flake input has unsupported input type '${info.type}'";
+in {
+  inherit fetchTree;
+})
+

default.nix

@@ -1,11 +1,11 @@
 # We use top-level nix-flake, so default.nix is basically just a wrapper around ./flake.nix
 (import
   (
-    let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
+    let 
-    fetchTarball {
+      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
-      url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+      c_ = import ./c_.nix {src = ./.;};
-      sha256 = lock.nodes.flake-compat.locked.narHash;
+    in
-    }
+    c_.fetchTree lock.nodes.flake-compat.locked
   )
   { src = ./.; }
 ).defaultNix

flake.lock

@@ -23,17 +23,14 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1668681692,
+        "lastModified": 1,
-        "narHash": "sha256-Ht91NGdewz8IQLtWZ9LCeNXMSXHUss+9COoqu6JLmXU=",
+        "narHash": "sha256-d6CilJXP+UPv3nF00zBBRhMgRklTCjSCMrjbYtYDuOI=",
-        "owner": "edolstra",
+        "path": "out-of-tree/flake-compat",
-        "repo": "flake-compat",
+        "type": "path"
-        "rev": "009399224d5e398d03b22badca40a37ac85412a1",
-        "type": "github"
       },
       "original": {
-        "owner": "edolstra",
+        "path": "out-of-tree/flake-compat",
-        "repo": "flake-compat",
+        "type": "path"
-        "type": "github"
       }
     },
     "flake-compat_2": {
@@ -120,11 +117,11 @@
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1673343300,
+        "lastModified": 1673737886,
-        "narHash": "sha256-5Xdj6kpXYMie0MlnGwqK5FaMdsedxvyuakWtyKB3zaQ=",
+        "narHash": "sha256-hNTqD0uIgpbtTI2Nuj/Q1lEFOOdZqqXpxoc8rMno2F0=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "176e455371a8371586e8a3ff0d56ee9f3ca2324e",
+        "rev": "2827b5306462d91edec16a3d069b2d6e54c3079f",
         "type": "github"
       },
       "original": {
@@ -159,11 +156,11 @@
       },
       "locked": {
         "dir": "contrib",
-        "lastModified": 1673504032,
+        "lastModified": 1673746461,
-        "narHash": "sha256-x4nv7g8+bQXg5PfkFw3vCcr3pYI0Hco0VoSbAy60xek=",
+        "narHash": "sha256-Y21pbVNlPWPokXFbngSahnxeCff0LX+LKdDktEBIVm4=",
         "owner": "neovim",
         "repo": "neovim",
-        "rev": "143d3f1f3224bca02bfef7df0932b9d7524a3ff2",
+        "rev": "6134c1e8a39a5e61d0593613343a5923a86e3545",
         "type": "github"
       },
       "original": {
@@ -180,11 +177,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1673511313,
+        "lastModified": 1673770422,
-        "narHash": "sha256-QGUT3w1bHclVRqX958EPOd3OxR/R10MoV97N5jx/qbw=",
+        "narHash": "sha256-hYVEUzvqobxAM2FZfWTrTLKKNfkOSfsm0uGqNoSiIvw=",
         "owner": "nix-community",
         "repo": "neovim-nightly-overlay",
-        "rev": "5af6fe31f9906e70a1e8985dbbdcc4ae66c7f82d",
+        "rev": "fd8e5953cfeada345d7daeedce6ab0919f1284d4",
         "type": "github"
       },
       "original": {
@@ -200,11 +197,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1673365945,
+        "lastModified": 1673752441,
-        "narHash": "sha256-/duo8kCEbo62D5gn46m//jfvRtT56KS5dy+j6+Rl+4Y=",
+        "narHash": "sha256-/g4ImZWV05CrXRWTSJsda6ztIp7LAPxs2L6RCrbQ66U=",
         "owner": "mic92",
         "repo": "nix-index-database",
-        "rev": "0e51ff44d6bef0b6b2bbf9e34fdc029fc24820fc",
+        "rev": "391180f77505c1c8cdd45fe1a59dc89d3e40300a",
         "type": "github"
       },
       "original": {
@@ -220,7 +217,7 @@
       },
       "locked": {
         "lastModified": 1,
-        "narHash": "sha256-KP+2qdZlhmRkrafuuEofg7YnNdVmGV95ipvpuqmJneI=",
+        "narHash": "sha256-RkO+8E7MahERHw1C5DNObDjq4xeI+FqaWH9+M7Fv2UE=",
         "path": "out-of-tree/nixGL",
         "type": "path"
       },
@@ -262,11 +259,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1673450908,
+        "lastModified": 1673631141,
-        "narHash": "sha256-b8em+kwrNtnB7gR8SyVf6WuTyQ+6tHS6dzt9D9wgKF0=",
+        "narHash": "sha256-AprpYQ5JvLS4wQG/ghm2UriZ9QZXvAwh1HlgA/6ZEVQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6c8644fc37b6e141cbfa6c7dc8d98846c4ff0c2e",
+        "rev": "befc83905c965adfd33e5cae49acb0351f6e0404",
         "type": "github"
       },
       "original": {
@@ -311,11 +308,11 @@
         "nixpkgs": "nixpkgs_4"
       },
       "locked": {
-        "lastModified": 1673490397,
+        "lastModified": 1673749717,
-        "narHash": "sha256-VCSmIYJy/ZzTvEGjdfITmTYfybXBgZpMjyjDndbou+8=",
+        "narHash": "sha256-hgrw8w/AThRWfVafx3EO3/TQlGcUou4nui8X47cVhXo=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "0833f4d063a2bb75aa31680f703ba594a384ffe6",
+        "rev": "aab6eb2dfc7a1e42d94b6f24ef13639ff8544af4",
         "type": "github"
       },
       "original": {

flake.nix

@@ -1,4 +1,7 @@
 {
+  nixConfig = {
+    
+  };
   description = "My personal configuration in Nix (and some native configurations)";
   inputs = {
     nixpkgs.url = "nixpkgs/nixos-unstable";
@@ -15,7 +18,7 @@
     rust-overlay.url = "github:oxalica/rust-overlay";
     # Allows default.nix to call onto flake.nix. Useful for nix eval and automations
     flake-compat = {
-      url = "github:edolstra/flake-compat";
+      url = "path:out-of-tree/flake-compat";
       flake = false;
     };
     kpcli-py = {

native_configs/alacritty/alacritty.yml

@@ -866,7 +866,7 @@ key_bindings:
   #- { key: Q,              mods: Command,                    action: Quit                  }
   #- { key: W,              mods: Command,                    action: Quit                  }
   #- { key: N,              mods: Command,                    action: SpawnNewInstance      }
-  #- { key: F,              mods: Command|Control,            action: ToggleFullscreen      }
+  - { key: Return,              mods: Command,            action: ToggleFullscreen      }
   #- { key: F,              mods: Command, mode: ~Search,     action: SearchForward         }
   #- { key: B,              mods: Command, mode: ~Search,     action: SearchBackward        }
 

native_configs/neovim/init.lua

@@ -10,7 +10,6 @@
 -- - zk  @ https://github.com/mickael-menu/zk
 -- - prettierd @ npm install -g @fsouza/prettierd
 
-local data_dir = vim.fn.stdpath('data')
 vim.cmd([[
 let data_dir = has('nvim') ? stdpath('data') . '/site' : '~/.vim'
 let plug_path = data_dir . '/autoload/plug.vim'
@@ -24,11 +23,6 @@ local function truthy(v) return v ~= nil end
 
 local function cfg(cfg_var, do_fn) if truthy(cfg_var) then do_fn() end end
 
-local function cfg_render(do_fn)
-    local should_render = not truthy(os.getenv("NVIM_HEADLESS"))
-    cfg(should_render, do_fn)
-end
-
 -- vim-plug
 local Plug = vim.fn['plug#']
 
@@ -87,7 +81,6 @@ Plug('kylechui/nvim-surround') -- surrounds with tags/parenthesis
 Plug('simrat39/rust-tools.nvim') -- config rust-analyzer and nvim integration
 
 -- UI & colorscheme
-cfg_render(function()
 Plug('simrat39/inlay-hints.nvim') -- type-hints with pseudo-virtual texts
 Plug('gruvbox-community/gruvbox') -- theme provider
 Plug('nvim-lualine/lualine.nvim') -- fancy status line
@@ -95,7 +88,6 @@ cfg_render(function()
 Plug('kyazdani42/nvim-web-devicons') -- icons for folder and filetypes
 Plug('m-demare/hlargs.nvim') -- highlights arguments; great for func prog
 Plug('folke/todo-comments.nvim') -- Highlights TODO
-end)
 
 -- other utilities
 Plug('nvim-treesitter/nvim-treesitter', { run = ':TSUpdate' })
@@ -139,30 +131,52 @@ vim.api.nvim_create_autocmd({ "VimEnter" }, {
 })
 
 
-vim.cmd([[
+vim.g.gruvbox_contrast_dark="soft";
-set ignorecase
+vim.g.gruvbox_contrast_light="soft";
-set smartcase
+vim.opt.ignorecase = true;
-set incsearch
+vim.opt.smartcase = true;
-set number relativenumber
+vim.opt.incsearch = true;
-set tabstop=4 softtabstop=4
+vim.opt.number = true;
-set autoindent
+vim.opt.relativenumber = true;
-set smartindent
+vim.opt.autoindent = true;
-set expandtab
+vim.opt.smartindent = true;
-set shiftwidth=4
+vim.opt.expandtab = true;
-set exrc
+vim.opt.exrc = true;
-set incsearch
+
-set scrolloff=30
+vim.opt.tabstop = 4;
-set signcolumn=yes
+vim.opt.softtabstop = 4;
-set colorcolumn=80
+vim.opt.shiftwidth = 4;
-set background=light
+vim.opt.scrolloff = 30;
-]])
+vim.opt.signcolumn = "yes";
+vim.opt.colorcolumn = "80";
+
+vim.opt.background = "light";
+
+vim.api.nvim_create_user_command('Dark', function(opts)
+    -- opts: {name, args: str, fargs: Splited<str>, range, ...}
+    ---@type string
+    local contrast = (opts.args and string.len(opts.args) > 0) and opts.args or vim.g.gruvbox_contrast_dark;
+    vim.g.gruvbox_contrast_dark = contrast;
+    vim.opt.background = "dark";
+end,
+    {nargs = "?";})
+
+vim.api.nvim_create_user_command('Light', function(opts)
+    -- opts: {name, args: str, fargs: Splited<str>, range, ...}
+    ---@type string
+    local contrast = (opts.args and string.len(opts.args) > 0) and opts.args or vim.g.gruvbox_contrast_dark;
+    vim.g.gruvbox_contrast_light = contrast;
+    vim.opt.background = "light";
+end,
+    {nargs = "?";})
+
 vim.opt.lazyredraw = true
 vim.opt.termguicolors = true
 vim.opt.cursorline = true
 -- some plugins misbehave when we do swap files
 vim.opt.swapfile = false
 vim.opt.backup = false
-vim.opt.undodir = os.getenv("HOME") .. "/.vim/undodir"
+vim.opt.undodir = vim.fn.stdpath('state')..'/.vim/undodir'
 vim.opt.undofile = true
 vim.opt.completeopt = 'menuone,noselect'
 -- vim.opt.clipboard = "unnamedplus"

nix-conf/home-manager/base/alacritty.nix

@@ -19,6 +19,14 @@ in
         '';
         example = "DroidSansMono NF";
       };
+      font.size = myLib.mkOption {
+        type = myLib.types.number;
+        default = actualConfig.font.size;
+        description = ''
+          The default font size for Alacritty. This is probably measured in px.
+        '';
+        example = 7.0;
+      };
       enable = myLib.mkOption {
         type = myLib.types.bool;
         default = true;
@@ -45,6 +53,7 @@ in
     enable = cfg.enable;
     settings = myLib.recursiveUpdate actualConfig {
       font.normal.family = cfg.font.family;
+      font.size = cfg.font.size;
     };
   };
 }

nix-conf/home-manager/base/default.nix

@@ -1,4 +1,6 @@
-{
+{nix-index-database
+,...
+}@inputs:{
   mkModuleArgs = import ./mkModuleArgs.nix;
   modules = [
     ./alacritty.nix
@@ -8,5 +10,6 @@
     {
       config.programs.home-manager.enable = true;
     }
+    nix-index-database.hmModules.nix-index
   ];
 }

nix-conf/home-manager/base/git.nix

@@ -44,6 +44,7 @@ in
       default = [
         ".vscode" # vscode settings
         ".direnv" # .envrc cached outputs
+        ".DS_Store" # MacOS users, amrite
       ];
       description = ''
         .gitignore patterns that are applied in every repository.

nix-conf/home-manager/flake.lock

@@ -3,17 +3,14 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1668681692,
+        "lastModified": 1,
-        "narHash": "sha256-Ht91NGdewz8IQLtWZ9LCeNXMSXHUss+9COoqu6JLmXU=",
+        "narHash": "sha256-d6CilJXP+UPv3nF00zBBRhMgRklTCjSCMrjbYtYDuOI=",
-        "owner": "edolstra",
+        "path": "../../out-of-tree/flake-compat",
-        "repo": "flake-compat",
+        "type": "path"
-        "rev": "009399224d5e398d03b22badca40a37ac85412a1",
-        "type": "github"
       },
       "original": {
-        "owner": "edolstra",
+        "path": "../../out-of-tree/flake-compat",
-        "repo": "flake-compat",
+        "type": "path"
-        "type": "github"
       }
     },
     "flake-compat_2": {
@@ -100,11 +97,11 @@
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1673343300,
+        "lastModified": 1673737886,
-        "narHash": "sha256-5Xdj6kpXYMie0MlnGwqK5FaMdsedxvyuakWtyKB3zaQ=",
+        "narHash": "sha256-hNTqD0uIgpbtTI2Nuj/Q1lEFOOdZqqXpxoc8rMno2F0=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "176e455371a8371586e8a3ff0d56ee9f3ca2324e",
+        "rev": "2827b5306462d91edec16a3d069b2d6e54c3079f",
         "type": "github"
       },
       "original": {
@@ -139,11 +136,11 @@
       },
       "locked": {
         "dir": "contrib",
-        "lastModified": 1673504032,
+        "lastModified": 1673746461,
-        "narHash": "sha256-x4nv7g8+bQXg5PfkFw3vCcr3pYI0Hco0VoSbAy60xek=",
+        "narHash": "sha256-Y21pbVNlPWPokXFbngSahnxeCff0LX+LKdDktEBIVm4=",
         "owner": "neovim",
         "repo": "neovim",
-        "rev": "143d3f1f3224bca02bfef7df0932b9d7524a3ff2",
+        "rev": "6134c1e8a39a5e61d0593613343a5923a86e3545",
         "type": "github"
       },
       "original": {
@@ -160,11 +157,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1673511313,
+        "lastModified": 1673770422,
-        "narHash": "sha256-QGUT3w1bHclVRqX958EPOd3OxR/R10MoV97N5jx/qbw=",
+        "narHash": "sha256-hYVEUzvqobxAM2FZfWTrTLKKNfkOSfsm0uGqNoSiIvw=",
         "owner": "nix-community",
         "repo": "neovim-nightly-overlay",
-        "rev": "5af6fe31f9906e70a1e8985dbbdcc4ae66c7f82d",
+        "rev": "fd8e5953cfeada345d7daeedce6ab0919f1284d4",
         "type": "github"
       },
       "original": {
@@ -173,6 +170,26 @@
         "type": "github"
       }
     },
+    "nix-index-database": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1673752441,
+        "narHash": "sha256-/g4ImZWV05CrXRWTSJsda6ztIp7LAPxs2L6RCrbQ66U=",
+        "owner": "mic92",
+        "repo": "nix-index-database",
+        "rev": "391180f77505c1c8cdd45fe1a59dc89d3e40300a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "mic92",
+        "repo": "nix-index-database",
+        "type": "github"
+      }
+    },
     "nixgl": {
       "inputs": {
         "flake-utils": "flake-utils_3",
@@ -180,7 +197,7 @@
       },
       "locked": {
         "lastModified": 1,
-        "narHash": "sha256-GgIXbuHvwReBHZUyfSKS6DET3CfD6EEKABj6ndpcqHQ=",
+        "narHash": "sha256-RkO+8E7MahERHw1C5DNObDjq4xeI+FqaWH9+M7Fv2UE=",
         "path": "./../../out-of-tree/nixGL",
         "type": "path"
       },
@@ -222,11 +239,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1673450908,
+        "lastModified": 1673631141,
-        "narHash": "sha256-b8em+kwrNtnB7gR8SyVf6WuTyQ+6tHS6dzt9D9wgKF0=",
+        "narHash": "sha256-AprpYQ5JvLS4wQG/ghm2UriZ9QZXvAwh1HlgA/6ZEVQ=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "6c8644fc37b6e141cbfa6c7dc8d98846c4ff0c2e",
+        "rev": "befc83905c965adfd33e5cae49acb0351f6e0404",
         "type": "github"
       },
       "original": {
@@ -259,6 +276,7 @@
         "home-manager": "home-manager",
         "kpcli-py": "kpcli-py",
         "neovim-nightly-overlay": "neovim-nightly-overlay",
+        "nix-index-database": "nix-index-database",
         "nixgl": "nixgl",
         "nixpkgs": "nixpkgs_3",
         "rust-overlay": "rust-overlay"
@@ -270,11 +288,11 @@
         "nixpkgs": "nixpkgs_4"
       },
       "locked": {
-        "lastModified": 1673490397,
+        "lastModified": 1673749717,
-        "narHash": "sha256-VCSmIYJy/ZzTvEGjdfITmTYfybXBgZpMjyjDndbou+8=",
+        "narHash": "sha256-hgrw8w/AThRWfVafx3EO3/TQlGcUou4nui8X47cVhXo=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "0833f4d063a2bb75aa31680f703ba594a384ffe6",
+        "rev": "aab6eb2dfc7a1e42d94b6f24ef13639ff8544af4",
         "type": "github"
       },
       "original": {

nix-conf/home-manager/flake.nix

@@ -1,4 +1,8 @@
 {
+  nixConfig = {
+    accept-flake-config = true;
+    experimental-features = "nix-command flakes";
+  };
   description = "simple home-manager config";
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
@@ -11,7 +15,7 @@
     rust-overlay.url = "github:oxalica/rust-overlay";
     # Allows default.nix to call onto flake.nix. Useful for nix eval and automations
     flake-compat = {
-      url = "github:edolstra/flake-compat";
+      url = "path:../../out-of-tree/flake-compat";
       flake = false;
     };
     kpcli-py = {
@@ -59,10 +63,10 @@
         config = { allowUnfree = true; };
       };
       # lib = (import ../lib { inherit pkgs; lib = pkgs.lib; });
-      base = import ./base;
+      base = import ./base flake_inputs;
       inherit (base) mkModuleArgs;
 
-      kde_module = { config, pkgs, ... }: {
+      nerd_font_module = { config, pkgs, ... }: {
         fonts.fontconfig.enable = true;
         home.packages = [
           (pkgs.nerdfonts.override { fonts = [ "DroidSansMono" ]; })
@@ -105,7 +109,7 @@
             inherit pkgs;
             modules = base.modules ++ [
               ./home.nix
-              kde_module
+              nerd_font_module
               ./base/productive_desktop.nix
               {
                 # since home.nix forces us to use keepass, and base.keepass.path
@@ -127,16 +131,41 @@
               };
             };
           };
-          "htran" = home-manager.lib.homeManagerConfiguration { 
+          "hungtran" = home-manager.lib.homeManagerConfiguration { 
             inherit pkgs;
-            modules = [
+            modules = base.modules ++ [
               ./home.nix
               {
                 base.graphics.enable = false;
-                base.graphics.useNixGL.defaultPackage = null;
-                base.keepass.path = "/Users/htran/keepass.kdbx";
                 # don't want to deal with GL stuffs on mac yet :/
+                base.graphics.useNixGL.defaultPackage = null;
+                # NOTE: this actually does not exist
+                base.keepass.path = "/Users/htran/keepass.kdbx";
+                base.alacritty.font.size = 11.0;
               }
+              nerd_font_module
+            ];
+            extraSpecialArgs = mkModuleArgs {
+              inherit pkgs;
+              myHome = {
+                username = "hungtran";
+                homeDirectory = "/Users/hungtran";
+              };
+            };
+          };
+          "htran" = home-manager.lib.homeManagerConfiguration { 
+            inherit pkgs;
+            modules = base.modules ++ [
+              ./home.nix
+              {
+                base.graphics.enable = false;
+                # don't want to deal with GL stuffs on mac yet :/
+                base.graphics.useNixGL.defaultPackage = null;
+                # NOTE: this actually does not exist
+                base.keepass.path = "/Users/htran/keepass.kdbx";
+                base.alacritty.font.size = 11.0;
+              }
+              nerd_font_module
             ];
             extraSpecialArgs = mkModuleArgs {
               inherit pkgs;

nix-conf/home-manager/home.nix

@@ -37,7 +37,7 @@ in
     # pkgs.xorg.xclock # TODO: only include if have gui # For testing GL installation
     # pkgs.logseq # TODO: only include if have GL # Obsidian alt
     pkgs.mosh # Parsec for SSH
-    # pkgs.nixops_unstable # nixops v2 # insecure for now
+    pkgs.nixops_unstable # nixops v2 # insecure for now
     pkgs.lynx # Web browser at your local terminal
     pkgs.zk
 

out-of-tree/flake-compat/COPYING

@@ -0,0 +1,20 @@
+Copyright (c) 2020-2021 Eelco Dolstra and the flake-compat contributors
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

out-of-tree/flake-compat/README.md

@@ -0,0 +1,29 @@
+# flake-compat
+
+## Usage
+
+To use, add the following to your `flake.nix`:
+
+```nix
+inputs.flake-compat = {
+  url = "github:edolstra/flake-compat";
+  flake = false;
+};
+```
+
+Afterwards, create a `default.nix` file containing the following:
+
+```nix
+(import
+  (
+    let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
+    fetchTarball {
+      url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+      sha256 = lock.nodes.flake-compat.locked.narHash;
+    }
+  )
+  { src = ./.; }
+).defaultNix
+```
+
+If you would like a `shell.nix` file, create one containing the above, replacing `defaultNix` with `shellNix`.

out-of-tree/flake-compat/default.nix

@@ -0,0 +1,204 @@
+# Compatibility function to allow flakes to be used by
+# non-flake-enabled Nix versions. Given a source tree containing a
+# 'flake.nix' and 'flake.lock' file, it fetches the flake inputs and
+# calls the flake's 'outputs' function. It then returns an attrset
+# containing 'defaultNix' (to be used in 'default.nix'), 'shellNix'
+# (to be used in 'shell.nix').
+
+{ src, system ? builtins.currentSystem or "unknown-system" }:
+
+let
+
+  lockFilePath = src + "/flake.lock";
+
+  lockFile = builtins.fromJSON (builtins.readFile lockFilePath);
+
+  fetchTree =
+    info:
+    if info.type == "github" then
+      { outPath =
+          fetchTarball
+            ({ url = "https://api.${info.host or "github.com"}/repos/${info.owner}/${info.repo}/tarball/${info.rev}"; }
+             // (if info ? narHash then { sha256 = info.narHash; } else {})
+            );
+        rev = info.rev;
+        shortRev = builtins.substring 0 7 info.rev;
+        lastModified = info.lastModified;
+        lastModifiedDate = formatSecondsSinceEpoch info.lastModified;
+        narHash = info.narHash;
+      }
+    else if info.type == "git" then
+      { outPath =
+          builtins.fetchGit
+            ({ url = info.url; }
+             // (if info ? rev then { inherit (info) rev; } else {})
+             // (if info ? ref then { inherit (info) ref; } else {})
+             // (if info ? submodules then { inherit (info) submodules; } else {})
+            );
+        lastModified = info.lastModified;
+        lastModifiedDate = formatSecondsSinceEpoch info.lastModified;
+        narHash = info.narHash;
+      } // (if info ? rev then {
+        rev = info.rev;
+        shortRev = builtins.substring 0 7 info.rev;
+      } else {
+      })
+    else if info.type == "path" then
+      { outPath = builtins.path { 
+        path = if builtins.substring 0 1 info.path != "/"
+          then src + ("/" + info.path)  # make this absolute path by prepending ./
+          else info.path; # it's already an absolute path
+      };
+        narHash = info.narHash;
+      }
+    else if info.type == "tarball" then
+      { outPath =
+          fetchTarball
+            ({ inherit (info) url; }
+             // (if info ? narHash then { sha256 = info.narHash; } else {})
+            );
+      }
+    else if info.type == "gitlab" then
+      { inherit (info) rev narHash lastModified;
+        outPath =
+          fetchTarball
+            ({ url = "https://${info.host or "gitlab.com"}/api/v4/projects/${info.owner}%2F${info.repo}/repository/archive.tar.gz?sha=${info.rev}"; }
+             // (if info ? narHash then { sha256 = info.narHash; } else {})
+            );
+        shortRev = builtins.substring 0 7 info.rev;
+      }
+    else
+      # FIXME: add Mercurial, tarball inputs.
+      throw "flake input has unsupported input type '${info.type}'";
+
+  callFlake4 = flakeSrc: locks:
+    let
+      flake = import (flakeSrc + "/flake.nix");
+
+      inputs = builtins.mapAttrs (n: v:
+        if v.flake or true
+        then callFlake4 (fetchTree (v.locked // v.info)) v.inputs
+        else fetchTree (v.locked // v.info)) locks;
+
+      outputs = flakeSrc // (flake.outputs (inputs // {self = outputs;}));
+    in
+      assert flake.edition == 201909;
+      outputs;
+
+  callLocklessFlake = flakeSrc:
+    let
+      flake = import (flakeSrc + "/flake.nix");
+      outputs = flakeSrc // (flake.outputs ({ self = outputs; }));
+    in outputs;
+
+  rootSrc = let
+    # Try to clean the source tree by using fetchGit, if this source
+    # tree is a valid git repository.
+    tryFetchGit = src:
+      if isGit && !isShallow
+      then
+        let res = builtins.fetchGit src;
+        in if res.rev == "0000000000000000000000000000000000000000" then removeAttrs res ["rev" "shortRev"]  else res
+      else { outPath = src; };
+    # NB git worktrees have a file for .git, so we don't check the type of .git
+    isGit = builtins.pathExists (src + "/.git");
+    isShallow = builtins.pathExists (src + "/.git/shallow");
+
+  in
+    { lastModified = 0; lastModifiedDate = formatSecondsSinceEpoch 0; }
+      // (if src ? outPath then src else tryFetchGit src);
+
+  # Format number of seconds in the Unix epoch as %Y%m%d%H%M%S.
+  formatSecondsSinceEpoch = t:
+    let
+      rem = x: y: x - x / y * y;
+      days = t / 86400;
+      secondsInDay = rem t 86400;
+      hours = secondsInDay / 3600;
+      minutes = (rem secondsInDay 3600) / 60;
+      seconds = rem t 60;
+
+      # Courtesy of https://stackoverflow.com/a/32158604.
+      z = days + 719468;
+      era = (if z >= 0 then z else z - 146096) / 146097;
+      doe = z - era * 146097;
+      yoe = (doe - doe / 1460 + doe / 36524 - doe / 146096) / 365;
+      y = yoe + era * 400;
+      doy = doe - (365 * yoe + yoe / 4 - yoe / 100);
+      mp = (5 * doy + 2) / 153;
+      d = doy - (153 * mp + 2) / 5 + 1;
+      m = mp + (if mp < 10 then 3 else -9);
+      y' = y + (if m <= 2 then 1 else 0);
+
+      pad = s: if builtins.stringLength s < 2 then "0" + s else s;
+    in "${toString y'}${pad (toString m)}${pad (toString d)}${pad (toString hours)}${pad (toString minutes)}${pad (toString seconds)}";
+
+  allNodes =
+    builtins.mapAttrs
+      (key: node:
+        let
+          sourceInfo =
+            if key == lockFile.root
+            then rootSrc
+            else fetchTree (node.info or {} // removeAttrs node.locked ["dir"]);
+
+          subdir = if key == lockFile.root then "" else node.locked.dir or "";
+
+          flake = import (sourceInfo + (if subdir != "" then "/" else "") + subdir + "/flake.nix");
+
+          inputs = builtins.mapAttrs
+            (inputName: inputSpec: allNodes.${resolveInput inputSpec})
+            (node.inputs or {});
+
+          # Resolve a input spec into a node name. An input spec is
+          # either a node name, or a 'follows' path from the root
+          # node.
+          resolveInput = inputSpec:
+              if builtins.isList inputSpec
+              then getInputByPath lockFile.root inputSpec
+              else inputSpec;
+
+          # Follow an input path (e.g. ["dwarffs" "nixpkgs"]) from the
+          # root node, returning the final node.
+          getInputByPath = nodeName: path:
+            if path == []
+            then nodeName
+            else
+              getInputByPath
+                # Since this could be a 'follows' input, call resolveInput.
+                (resolveInput lockFile.nodes.${nodeName}.inputs.${builtins.head path})
+                (builtins.tail path);
+
+          outputs = flake.outputs (inputs // { self = result; });
+
+          result = outputs // sourceInfo // { inherit inputs; inherit outputs; inherit sourceInfo; };
+        in
+          if node.flake or true then
+            assert builtins.isFunction flake.outputs;
+            result
+          else
+            sourceInfo
+      )
+      lockFile.nodes;
+
+  result =
+    if !(builtins.pathExists lockFilePath)
+    then callLocklessFlake rootSrc
+    else if lockFile.version == 4
+    then callFlake4 rootSrc (lockFile.inputs)
+    else if lockFile.version >= 5 && lockFile.version <= 7
+    then allNodes.${lockFile.root}
+    else throw "lock file '${lockFilePath}' has unsupported version ${toString lockFile.version}";
+
+in
+  rec {
+    defaultNix =
+      (builtins.removeAttrs result ["__functor"])
+      // (if result ? defaultPackage.${system} then { default = result.defaultPackage.${system}; } else {})
+      // (if result ? packages.${system}.default then { default = result.packages.${system}.default; } else {});
+
+    shellNix =
+      defaultNix
+      // (if result ? devShell.${system} then { default = result.devShell.${system}; } else {})
+      // (if result ? devShells.${system}.default then { default = result.devShells.${system}.default; } else {});
+  }

scripts/hm-switch.sh

@@ -2,7 +2,7 @@
 # NOTE: Untested on case of no home-manager
 set -xv
 # Where this script located
-SCRIPT_DIR=$(realpath $(dirname $0))
+SCRIPT_DIR=$(readlink -f $(dirname $0))
 echo "SCRIPT_DIR: ${SCRIPT_DIR}"
 
 HOME_MANAGER_DIR="${SCRIPT_DIR}/../nix-conf/home-manager"
@@ -24,7 +24,7 @@ rm -rf ~/.local/share/nvim/mason
 
 # test if we have home-manager, if not, attempt to use nix to put home-manager to
 # our environment
-if [ $(home-manager help >/dev/null 2>&1) ]; then
+if ! command -v home-manager ; then
     nix-shell -p home-manager --run "home-manager switch --flake $HOME_MANAGER_DIR $@"
 else
     home-manager switch -b backup --flake "$HOME_MANAGER_DIR" $@

shell.nix

@@ -3,11 +3,9 @@
 # This architecture is because we use top-level flake.nix
 (import
   (
-    let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
+    let 
-    fetchTarball {
+      lock = builtins.fromJSON (builtins.readFile ./flake.lock); 
-      url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+    in (import ./c_.nix {src = ./.;}).fetchTree lock.nodes.flake-compat.locked
-      sha256 = lock.nodes.flake-compat.locked.narHash;
-    }
   )
   { src = ./.; }
 ).shellNix