nvim: Add telescope file-browser

flake.nix

@@ -19,6 +19,7 @@
     hercules-ci-agent.url = "github:hercules-ci/hercules-ci-agent/master";
     nixos-shell.url = "github:Mic92/nixos-shell";
 
+    # Vim & its plugins (not in nixpkgs)
     neovim-nightly-overlay.url = "github:nix-community/neovim-nightly-overlay";
     neovim-nightly-overlay.inputs.neovim-flake.url = "github:neovim/neovim/v0.7.0?dir=contrib";
     vim-eldar.url = "github:agude/vim-eldar";

home/neovim.nix

@@ -1,8 +1,10 @@
 { pkgs, inputs, system, ... }:
-{
+let 
+    nvim = inputs.neovim-nightly-overlay.packages.${system}.neovim;
+in {
   programs.neovim = {
     enable = true;
-    package = inputs.neovim-nightly-overlay.packages.${system}.neovim;
+    package = nvim;
 
     coc = {
       enable = true;
@@ -88,6 +90,34 @@
           nmap("<leader>fz", ":Telescope zoxide list<cr>")
           '';
       }
+      { 
+        plugin = telescope-file-browser-nvim;
+        type = "lua";
+        config = ''
+          -- You don't need to set any of these options.
+          -- IMPORTANT!: this is only a showcase of how you can set default options!
+          require("telescope").setup {
+            extensions = {
+              file_browser = {
+                theme = "ivy",
+                mappings = {
+                  ["i"] = {
+                    -- your custom insert mode mappings
+                  },
+                  ["n"] = {
+                    -- your custom normal mode mappings
+                  },
+                },
+              },
+            },
+          }
+          -- To get telescope-file-browser loaded and working with telescope,
+          -- you need to call load_extension, somewhere after setup function:
+          require("telescope").load_extension "file_browser"
+          nmap("<leader>fb", ":Telescope file_browser<cr>")
+          '';
+      }
+
       {
         plugin = lualine-nvim;
         type = "lua";