[neovim] Adds configs. Auto-sessions doesn't load properly.

home-manager/features/config/neovim/.XCompose

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+include "%L"
+
+<Multi_key> <g> <a> : "α"
+<Multi_key> <g> <b> : "β"
+<Multi_key> <g> <g> : "γ"
+<Multi_key> <g> <p> : "π"

home-manager/features/config/neovim/ftplugin/lua.vim

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+set shiftwidth=4
+set tabstop=4
+set softtabstop=4

home-manager/features/config/neovim/init.lua

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+require("periodic")

home-manager/features/config/neovim/lua/periodic/init.lua

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+vim.g.mapleader = ","
+
+vim.cmd [[
+colorscheme decay-dark
+set autoindent
+set expandtab
+set smartindent
+set shiftwidth=2
+set tabstop=2
+set softtabstop=2
+filetype on
+
+]]
+
+-- Make sure sesssion options includes `localoptions` so that auto-sessions will start properly
+vim.o.sessionoptions="blank,buffers,curdir,folds,help,tabpages,winsize,winpos,terminal,localoptions"
+
+local telescope = require('telescope.builtin')
+
+vim.keymap.set("n", "<C-e>", "<cmd>RnvimrToggle<CR>", { noremap = true, silent = true })
+vim.keymap.set("n", "<C-n>", "<cmd>TabNext<CR>", { noremap = true, silent = true })
+vim.keymap.set("n", "<C-p>", telescope.find_files, { desc = "Telescope find files" })
+vim.keymap.set("n", "<C-t>", telescope.buffers, { desc = "Telescope buffers" })
+
+
+vim.filetype.add {
+    extension = {
+        rasi = 'rasi',
+    },
+    pattern = {
+        -- Some common config files and their types
+        ['.*/waybar/config'] = 'jsonc',
+        ['.*/mako/config'] = 'dosini',
+        ['.*/kitty/*.conf'] = 'bash',
+        ['.*/hypr/.*%.conf'] = 'hyprlang',
+    },
+}

home-manager/features/neovim.nix

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+{ pkgs, lib, ... }:
+let
+  fromGitHub = repo: ref: rev: pkgs.vimUtils.buildVimPlugin {
+    pname = "${lib.strings.sanitizeDerivationName repo}";
+    version = ref;
+    src = builtins.fetchGit {
+      url = "https://github.com/${repo}.git";
+      ref = ref;
+      rev = rev;
+    };
+  };
+in
+{
+  home.file.".config/nvim" = {
+    source = ./config/neovim;
+    recursive = true;
+  };
+
+  programs.neovim = {
+    enable = true;
+    viAlias = true;
+    vimAlias = true;
+    defaultEditor = true;
+
+    plugins = with pkgs.vimPlugins; [
+      nvim-treesitter
+      surround-nvim
+      telescope-nvim
+      plenary-nvim # dependency of telescope
+      rnvimr
+      (fromGitHub "decaycs/decay.nvim" "HEAD" "457014541ebcfb29bd660592a0b02f22c9e2d0e2")
+      auto-session
+    ];
+
+    extraPackages = with pkgs; [
+      gcc # For treesitter complation
+      ripgrep # Search support
+      wayclip # Clipboard support
+      fd # finder for telescope
+    ];
+  };
+}