go, lsp, minimal nvim

init.lua

local lazypath = vim.fn.stdpath('data') .. '/lazy/lazy.nvim'
local uv = vim.uv or vim.loop

-- Auto-install lazy.nvim if not present
if not uv.fs_stat(lazypath) then
  print('Installing lazy.nvim....')
  vim.fn.system({
    'git',
    'clone',
    '--filter=blob:none',
    'https://github.com/folke/lazy.nvim.git',
    '--branch=stable', -- latest stable release
    lazypath,
  })
  print('Done.')
end

vim.opt.rtp:prepend(lazypath)

require('lazy').setup({
  {'williamboman/mason.nvim'},
  {'williamboman/mason-lspconfig.nvim'},
  {
    'VonHeikemen/lsp-zero.nvim',
    branch = 'v3.x',
    lazy = true,
    config = false,
  },
  {
    'neovim/nvim-lspconfig',
    dependencies = {
      {'hrsh7th/cmp-nvim-lsp'},
    }
  },
  -- Autocompletion
  {
    'hrsh7th/nvim-cmp',
    dependencies = {
      {'L3MON4D3/LuaSnip'}
    },
  },
})

vim.cmd([[ set t_8f=^[[38;2;%lu;%lu;%lum ]])
vim.cmd([[ set t_8b=^[[48;2;%lu;%lu;%lum ]])
vim.opt.termguicolors = false

local lsp_zero = require('lsp-zero')

lsp_zero.on_attach(function(client, bufnr)
  -- see :help lsp-zero-keybindings
  -- to learn the available actions
  lsp_zero.default_keymaps({buffer = bufnr})
end)

require('mason').setup({})
require('mason-lspconfig').setup({
  handlers = {
    lsp_zero.default_setup,
  },
})

-- https://github.com/williamboman/mason.nvim/issues/635#issuecomment-1304897092
vim.api.nvim_create_autocmd("FileType", {
    pattern = "mason",
    callback = function ()
        vim.api.nvim_set_hl(0, "MasonNormal", { bg = "red" })
    end
})
vim.api.nvim_create_autocmd("FileType", {
    pattern = "lazy",
    callback = function ()
        vim.api.nvim_set_hl(0, "LazyNormal", { bg = "red" })
    end
})

Used it with Wezterm Batman colorscheme