NemCSS

Editor Support ​

The nemcss LSP (Language Server Protocol) gives you autocomplete and hover documentation for every generated utility class and CSS custom property, directly in your editor.

VS Code ​

Install the extension from the VS Code marketplace:

Once installed, the extension automatically starts the language server when it detects a nemcss.config.json in your workspace. No additional configuration needed.

What you get:

  • Autocomplete for all generated utility classes (e.g. .text-primary, .p-md)
  • Autocomplete for all generated CSS custom properties (e.g. --color-primary)
  • Hover documentation showing the resolved value for each token

Supported file types: CSS, SCSS, Sass, Less, HTML, JavaScript, TypeScript, JSX, TSX, Vue, Svelte, Astro

Neovim and other editors ​

For any editor that supports the Language Server Protocol, you can use the standalone nemcss-lsp binary.

Download ​

Download the binary for your platform from GitHub Releases:

PlatformBinary
macOS (Apple Silicon)nemcss-lsp-darwin-arm64
macOS (Intel)nemcss-lsp-darwin-x64
Linux (x64)nemcss-lsp-linux-x64
Linux (ARM64)nemcss-lsp-linux-arm64
Windows (x64)nemcss-lsp-win32-x64.exe

Configure your editor ​

Point your LSP client at the nemcss-lsp binary and enable it for CSS files. The server communicates over stdio.

Neovim (with nvim-lspconfig):

lua
local lspconfig = require('lspconfig')
local configs = require('lspconfig.configs')

if not configs.nemcss then
  configs.nemcss = {
    default_config = {
      cmd = { '/path/to/nemcss-lsp' },
      filetypes = { 'css', 'html', 'javascriptreact', 'typescriptreact', 'vue', 'svelte', 'astro', 'json' },
      root_dir = lspconfig.util.root_pattern('nemcss.config.json'),
    },
  }
end

lspconfig.nemcss.setup({})