My Custom NeoVim Setup

A personalized neovim configuration that fuses lazyvim and custom configurations, keybinds and functions for an optimized and efficient coding environment.

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Description

I have been interested in neovim for quite some time, and during the first semester of 2025, I fully committed to creating a setup that suits my needs.
this configuration primarily uses the lazyvim plugin manager, and whenever existing plugins weren't enough, I implemented my own lua functions to fill in the gaps.

Comments inside files are available in spanish and english and non-commented lines are default configurations.

For instalation unzip the chosen release on your .config/nvim/ folder.

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Plugins

This setup includes a variety of plugins configured to enhance productivity:

• autopairs: automatically closes brackets, braces, and parentheses.
• gruvbox-material: handles the editor's color scheme.
• harpoon: efficiently manages open buffers for quick navigation.
• indent-blankline: visualizes indentation with a custom character.
• mason, mason-lspconfig, nvim-lspconfig: install and integrate lsps for various languages.
• nvim-dap, nvim-dap-ui, nvim-dap-go: provides a visual debugging environment for multiple languages (with dap-go and a ui).
• nvim-dap-virtual-text, mason-nvim-dap: shows inline values during debugging and lets mason install debuggers.
• telescope: file search with live preview.
• treesitter: syntax parsing and highlighting.
• cmp (nvim-cmp): autocompletion engine supporting dictionaries, snippets, and lsps.
• lualine: modern, customizable status line replacing the default one.
• bufferline: tabline with open buffers, styled like a tab bar.
• neo-tree: file explorer with grouping of empty directories.
• nvim-web-devicons: filetype icons for lualine, telescope, and other plugins.
• markdown-preview: live preview for markdown files in the browser.
• nvim-ts-autotag: automatically closes and renames html-like tags.
• vim-smoothie: smooth scrolling for j, k, and Ctrl-D/U.
• plenary: utility library used by other plugins.

All plugins and related keybinds have been configured to fit my workflow and are present and explained in init.lua and the plugins folder.

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Custom functions

Some new functions are implemented like:

toggle_terminal_window

This function toggles a horizontal terminal window and buffer for getting in an out fast and easy.

local function toggle_terminal_window()
    -- Si la ventana de la terminal sigue abierta, ciérrala (ocúltala) / If the terminal window is still open, close it (hide it)
    if term_win and api.nvim_win_is_valid(term_win) then
        api.nvim_win_hide(term_win)
        term_win = nil
        return
    end

    -- Si no hay buffer de terminal válido, créalo / If there is no valid terminal buffer, create it
    if not term_buf or not api.nvim_buf_is_valid(term_buf) then
        vim.cmd('split')
        vim.cmd('resize 10')
        vim.cmd('terminal')
        term_win = api.nvim_get_current_win()
        term_buf = api.nvim_get_current_buf()
        api.nvim_buf_set_name(term_buf, "Terminal")
    else
        -- Si el buffer existe, simplemente lo volvemos a mostrar / if the buffer exists, just show it again
        vim.cmd('split')
        vim.cmd('resize 10')
        term_win = api.nvim_get_current_win()
        api.nvim_win_set_buf(term_win, term_buf)
    end

    vim.cmd('startinsert')
end

open_something

This function asks for a program name and opens it in a terminal, giving the buffer a proper title.

local function open_something()
    local cmd = vim.fn.input("Select your program: ")
    if cmd == "" then
        vim.print("")
        return
    end

    vim.cmd('terminal ' ..  cmd)
    vim.cmd('startinsert')
    local in_buf = api.nvim_get_current_buf()

    local parts = vim.split(cmd, " ")
    local title
    if #parts > 1 then
        title = parts[2]:sub(1,1):upper() .. parts[2]:sub(2)
    else
        title = parts[1]:sub(1,1):upper() .. parts[1]:sub(2)
    end
    vim.b.display_name = title
    vim.b.command = parts[1]
    vim.opt.mouse = "a"
end

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Additional features

• A custom Spanish dictionary for autocompletion, generated from the 20,000 most frequent words from the RAE corpus using a custom C program handling UTF-8 characters.
• CMP configuration shows a book icon and "Dictionary" label for dictionary suggestions, improving visual distinction between LSP and text completions.
• A function similar to toggle_terminal_window that toggles the whole buffer instead.
• Functions to enable and disable copilot.

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Screenshot

Example of real working with this setup.