remove unused nix code

flake.lock: Update

Flake lock file updates:

• Updated input 'neovim-nightly-overlay':
    'github:nix-community/neovim-nightly-overlay/b7b3632fab34541543373254c265da03c1d0f240?narHash=sha256-SDLZMha2miaChOBGBkQJlTtk2kvcB7WIVVZ2l0/9byc%3D' (2025-10-01)
  → 'github:nix-community/neovim-nightly-overlay/7ff73a295b0065bde2f8b43b31558136ca77bd98?narHash=sha256-39JFRb006AOsIcOq%2B03H3y6YcGyaphk1CW5DRi14cOE%3D' (2025-10-13)
• Updated input 'neovim-nightly-overlay/flake-parts':
    'github:hercules-ci/flake-parts/4524271976b625a4a605beefd893f270620fd751?narHash=sha256-%2BuWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw%3D' (2025-09-01)
  → 'github:hercules-ci/flake-parts/758cf7296bee11f1706a574c77d072b8a7baa881?narHash=sha256-wfG0S7pltlYyZTM%2BqqlhJ7GMw2fTF4mLKCIVhLii/4M%3D' (2025-10-01)
• Updated input 'neovim-nightly-overlay/git-hooks':
    'github:cachix/git-hooks.nix/54df955a695a84cd47d4a43e08e1feaf90b1fd9b?narHash=sha256-ytw7ROXaWZ7OfwHrQ9xvjpUWeGVm86pwnEd1QhzawIo%3D' (2025-09-17)
  → 'github:cachix/git-hooks.nix/cfc9f7bb163ad8542029d303e599c0f7eee09835?narHash=sha256-PTod9NG%2Bi3XbbnBKMl/e5uHDBYpwIWivQ3gOWSEuIEM%3D' (2025-10-03)
• Updated input 'neovim-nightly-overlay/neovim-src':
    'github:neovim/neovim/198c9e9bca7549cf7110be8c6f1df1c38d4e747f?narHash=sha256-oc1pPeoe8458X0r/Wum8CucVcJLlIp4mg%2B1HiOSVRgA%3D' (2025-09-30)
  → 'github:neovim/neovim/72b0bfa1fb7e897e5126aabae718a5480f466b9e?narHash=sha256-RnB%2BoJcP37YT9pjr1osUQtJc%2B1qcVyaaeSbiSyXwm1Y%3D' (2025-10-12)
• Updated input 'neovim-nightly-overlay/nixpkgs':
    'github:NixOS/nixpkgs/647e5c14cbd5067f44ac86b74f014962df460840?narHash=sha256-JVZl8NaVRYb0%2B381nl7LvPE%2BA774/dRpif01FKLrYFQ%3D' (2025-09-28)
  → 'github:NixOS/nixpkgs/362791944032cb532aabbeed7887a441496d5e6e?narHash=sha256-gKl2Gtro/LNf8P%2B4L3S2RsZ0G390ccd5MyXYrTdMCFE%3D' (2025-10-11)
• Updated input 'neovim-nightly-overlay/treefmt-nix':
    'github:numtide/treefmt-nix/5eda4ee8121f97b218f7cc73f5172098d458f1d1?narHash=sha256-ySNJ008muQAds2JemiyrWYbwbG%2BV7S5wg3ZVKGHSFu8%3D' (2025-09-24)
  → 'github:numtide/treefmt-nix/761ae7aff00907b607125b2f57338b74177697ed?narHash=sha256-gq9rdocpmRZCwLS5vsHozwB6b5nrOBDNc2kkEaTXHfg%3D' (2025-10-10)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/d48b56f4899ee1d5377291576284969c9e37acc2?narHash=sha256-7G5fSMPNVwWNlFpZLwvKB8PUOaqPzFQbrtZ7RAzg2nw%3D' (2025-10-01)
  → 'github:NixOS/nixpkgs/09c05674757a82f32b67f70f702e56c4901a3cdd?narHash=sha256-IzUhHp/jU06jBW6S%2Bd12AO3sgq5yehYVTCBH7J6re5c%3D' (2025-10-13)

flake.lock: Update

Flake lock file updates:

• Updated input 'neovim-nightly-overlay/nixpkgs':
    'github:NixOS/nixpkgs/362791944032cb532aabbeed7887a441496d5e6e?narHash=sha256-gKl2Gtro/LNf8P%2B4L3S2RsZ0G390ccd5MyXYrTdMCFE%3D' (2025-10-11)
  → follows 'nixpkgs'

nvim/after/plugin/plugins.lua

@@ -0,0 +1,153 @@
+local map = vim.keymap.set
+
+require('mini.basics').setup { mappings = { windows = true } }
+require('mini.icons').setup()
+
+require('dart').setup {
+  tabline = {
+    icons = false,
+    label_marked_fg = 'cyan',
+  },
+}
+
+require('snacks').setup {
+  bigfile = { enabled = true },
+  terminal = { enabled = true },
+  indent = { enabled = true },
+  input = { enabled = true },
+  notifier = { enabled = true },
+  styles = { notification = { wo = { wrap = true } } },
+  picker = {
+    enabled = true,
+    matcher = {
+      frecency = true,
+      cwd_bonus = true,
+    },
+    layout = 'ivy_split',
+    sources = {
+      grep = { hidden = true },
+      lsp_symbols = {
+        filter = { default = true },
+        layout = {
+          preset = 'left',
+          layout = { width = 90, min_width = 90 },
+        },
+      },
+      smart = {
+        multi = {
+          'buffers',
+          { source = 'files', hidden = true },
+          { source = 'git_files', untracked = true },
+        },
+      },
+    },
+  },
+}
+
+map({ 'n', 't' }, '<C-\\>', Snacks.terminal.toggle)
+map('n', '<leader>ff', Snacks.picker.smart)
+map('n', '<leader><leader>', Snacks.picker.smart)
+map('n', '<leader>fa', Snacks.picker.grep)
+map('n', '<leader>f8', Snacks.picker.grep_word)
+map('n', '<leader>f?', Snacks.picker.pickers)
+map('n', '<leader>fu', Snacks.picker.undo)
+map('n', '<leader>fj', Snacks.picker.jumps)
+map('n', '<leader>f.', Snacks.picker.resume)
+map('n', '<leader>fb', Snacks.picker.buffers)
+map('n', '<leader>fq', Snacks.picker.qflist)
+map('n', '<leader>jf', require('iofq.snacks_jj').status)
+
+vim.schedule(function()
+  require('nvim-treesitter').setup()
+  require('nvim-treesitter-textobjects').setup()
+  require('render-markdown').setup()
+  require('nvim-autopairs').setup()
+
+  require('refactoring').setup()
+  map('n', '<leader>rr', require('refactoring').select_refactor)
+  map('n', '<leader>rv', function()
+    require('refactoring').refactor('Inline Variable')
+  end)
+
+  require('quicker').setup()
+  map('n', '<leader>qf', function()
+    require('quicker').toggle { max_height = 20 }
+  end)
+
+  require('conform').setup {
+    notify_no_formatters = false,
+    formatters_by_ft = {
+      json = { 'jq' },
+      lua = { 'stylua' },
+      python = { 'ruff' },
+      nix = { 'nixfmt' },
+      fish = { 'fish_indent' },
+      ['*'] = { 'trim_whitespace' },
+    },
+    format_on_save = function(bufnr)
+      -- Disable with a global or buffer-local variable
+      if vim.g.disable_autoformat or vim.b[bufnr].disable_autoformat then
+        return
+      end
+      return { timeout_ms = 1500, lsp_format = 'fallback' }
+    end,
+  }
+  map('n', '\\f', function()
+    vim.b.disable_autoformat = not vim.b.disable_autoformat
+    vim.notify(string.format('Buffer formatting disabled: %s', vim.b.disable_autoformat))
+  end)
+  map('n', '\\F', function()
+    vim.g.disable_autoformat = not vim.g.disable_autoformat
+    vim.notify(string.format('Global formatting disabled: %s', vim.g.disable_autoformat))
+  end)
+
+  require('lint').linters_by_ft = {
+    docker = { 'hadolint' },
+    yaml = { 'yamllint' },
+    sh = { 'shellcheck' },
+    go = { 'golangcilint' },
+    ruby = { 'rubocop' },
+    fish = { 'fish' },
+    bash = { 'bash' },
+    nix = { 'nix' },
+    php = { 'php' },
+  }
+  vim.api.nvim_create_autocmd({ 'BufWritePost' }, {
+    callback = function()
+      require('lint').try_lint(nil, { ignore_errors = true })
+    end,
+  })
+
+  vim.treesitter.language.register('markdown', 'blink-cmp-documentation')
+  require('blink.cmp').setup {
+    enabled = function()
+      return not vim.tbl_contains({ 'snacks_picker_input' }, vim.bo.filetype)
+    end,
+    sources = {
+      default = { 'lsp', 'path', 'snippets', 'ripgrep', 'buffer' },
+      providers = {
+        lsp = { fallbacks = {} }, -- include buffer even when LSP is active
+        path = { opts = { get_cwd = vim.fn.getcwd } }, -- use nvim pwd instead of current file pwd
+        ripgrep = {
+          module = 'blink-ripgrep',
+          name = 'rg',
+          score_offset = -10,
+          async = true,
+        },
+      },
+    },
+    cmdline = { completion = { menu = { auto_show = true } } },
+    completion = {
+      documentation = { auto_show = true },
+      menu = {
+        draw = {
+          columns = {
+            { 'label', 'label_description', gap = 1 },
+            { 'source_name', 'kind', gap = 1 },
+          },
+        },
+      },
+    },
+    signature = { enabled = true, trigger = { show_on_insert = true } },
+  }
+end)