Neovim Config

Personal Neovim configuration for Dimas Febri, built on lazy.nvim. Focuses on TypeScript / web frontend, plus C / Go / NASM for system programming and kernel development.

Layout

init.lua                    # entry point: requires options, keymaps, lazy
lua/config/
  options.lua               # vim.opt.* settings
  keymaps.lua               # leader, splits, tabs, jk-to-ESC, etc.
  lazy.lua                  # lazy.nvim bootstrap + plugin spec import
lua/plugins/
  *.lua                     # one file per plugin (auto-imported by lazy)
  lsp/
    mason.lua               # LSP/formatter/linter installer
    lspconfig.lua           # LSP server wiring + LspAttach keymaps

Stack

• Bootstrap: lazy.nvim
• Colorscheme: tokyonight (style: night, custom dark blue palette)
• UI: alpha (dashboard), lualine, bufferline (tabs mode), nvim-tree, which-key, dressing, indent-blankline, nvim-web-devicons
• Editing: treesitter (main branch), telescope (+ fzf-native), Comment.nvim, nvim-surround, nvim-autopairs, substitute.nvim, todo-comments, vim-maximizer
• LSP / Completion: mason + mason-lspconfig + mason-tool-installer, nvim-lspconfig, nvim-cmp + LuaSnip + lspkind, conform.nvim (format-on-save), nvim-lint
• Git / Session: gitsigns.nvim, auto-session, trouble.nvim
• Misc: vim-tmux-navigator, vim-wakatime

Languages supported

Language	LSP	Format	Lint	Treesitter
JavaScript / TypeScript / JSX / TSX	ts_ls	prettier	eslint_d	✓
HTML / CSS	html, cssls, tailwindcss, emmet_ls	prettier	—	✓
JSON / YAML / Markdown	—	prettier	—	✓
Lua	lua_ls	stylua	—	✓
C / C++	clangd	clang-format	(LSP)	✓
Go	gopls	goimports + gofumpt	golangci-lint	✓
Assembly (NASM / GAS / MASM)	asm_lsp	—	—	✓ (asm parser)
Bash / Make / CMake / Dockerfile	—	—	—	✓

Requirements

• Neovim 0.12+ (uses vim.lsp.config() API and vim.diagnostic.jump())
• Git
• A Nerd Font in your terminal (FiraCode Nerd Font Mono recommended)
• tree-sitter-cli for parser builds: brew install tree-sitter-cli
• ripgrep for telescope live_grep
• A C compiler (Xcode CLT on macOS)
• For Go: go toolchain on PATH
• For C/C++ kernel work: clangd is installed via Mason, but you may want a .clangd file at project root with -ffreestanding flags

First launch

nvim

Lazy.nvim will clone all plugins, Mason will download LSP/formatter binaries, and treesitter will compile parsers. Allow ~3–5 minutes on first run.

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Keymap reference

Leader key is Space. <localleader> is \ (rarely used).

General editing

Keys	Action	Where defined
jk (insert mode)	Exit to normal mode	keymaps.lua
<leader>nh	Clear search highlights (:nohl)	keymaps.lua
<leader>+	Increment number under cursor	keymaps.lua
<leader>-	Decrement number under cursor	keymaps.lua

Window splits

Keys	Action
<leader>sv	Split window vertically
<leader>sh	Split window horizontally
<leader>se	Make all splits equal size
<leader>sx	Close current split
<leader>sm	Maximize / minimize current split (vim-maximizer)
<C-h> / <C-j> / <C-k> / <C-l>	Move between splits and tmux panes

Tab pages (vim tabs)

Keys	Action
<leader>to	New tab
<leader>tx	Close current tab
<leader>tn	Next tab
<leader>tp	Previous tab
<leader>tf	Open current buffer in new tab

File explorer (nvim-tree)

Keys	Action
<leader>ee	Toggle file explorer
<leader>ef	Toggle, jumping to current file
<leader>ec	Collapse all open folders
<leader>er	Refresh tree

Telescope (fuzzy find)

Keys	Action
<leader>ff	Fuzzy find files in cwd
<leader>fr	Fuzzy find recently opened files
<leader>fs	Live grep in cwd
<leader>fc	Grep word under cursor in cwd
<leader>ft	Find TODO/FIX/NOTE comments

Inside any telescope picker:

Keys	Action
<C-j> / <C-k>	Next / previous result
<C-q>	Send all results to quickfix list

LSP (only active in buffers with an LSP attached)

Keys	Action
K (Neovim built-in)	Hover documentation
gD	Go to declaration
gd	Show LSP definitions (Telescope)
gi	Show LSP implementations
gt	Show LSP type definitions
gR	Show LSP references
<leader>ca	Show code actions (works in normal & visual)
<leader>rn	Smart rename symbol
<leader>D	Show buffer diagnostics
<leader>d	Show line diagnostics (floating)
[d / ]d	Previous / next diagnostic
<leader>rs	Restart the LSP for current buffer

Completion (nvim-cmp, in insert mode)

Keys	Action
<C-Space>	Trigger completion menu
<C-j> / <C-k>	Next / previous completion item
<C-b> / <C-f>	Scroll docs up / down
<C-e>	Abort completion menu
<CR>	Confirm selected item (does NOT confirm if nothing selected)

Format / Lint

Keys	Action
<leader>mp	Format current file or visual selection (conform)
<leader>l	Manually trigger linters for current file (nvim-lint)
:w	Auto-format on save (conform; sync, 1s timeout)

Git (gitsigns — only in git-tracked files)

Keys	Action
]h / [h	Next / previous git hunk
<leader>hs (n)	Stage hunk under cursor
<leader>hs (v)	Stage selected lines
<leader>hr (n / v)	Reset hunk / selection
<leader>hS	Stage entire buffer
<leader>hR	Reset entire buffer
<leader>hp	Preview hunk diff (floating window)
<leader>hb	Blame current line (full info)
<leader>hB	Toggle line blame in virtual text
<leader>hd	Diff this file vs index
<leader>hD	Diff this file vs HEAD~
ih (text object)	Inner hunk (dih deletes hunk, vih selects)

Diagnostics panel (trouble.nvim)

Keys	Action
<leader>xw	Workspace diagnostics
<leader>xd	Document (current buffer) diagnostics
<leader>xq	Quickfix list
<leader>xl	Location list
<leader>xt	TODO comments list

Comments

Keys	Action
gcc	Toggle comment for current line
gc (visual)	Toggle comment for selection
gcb	Block comment current line
]t / [t	Next / previous TODO/FIX/NOTE comment

Substitute (replace target with register contents)

Keys	Action
s<motion> (e.g. siw)	Substitute text covered by motion with yank
ss	Substitute current line
S	Substitute from cursor to end of line
s (visual)	Substitute current selection

Surround (nvim-surround)

Keys	Action
ys<motion><char>	Add <char> around motion. e.g. ysiw" wraps word in "
cs<old><new>	Change surrounding <old> to <new>. e.g. cs"'
ds<char>	Delete surrounding <char>. e.g. ds( removes parens

Treesitter

Treesitter highlight, indent, and autotag (HTML/JSX) are automatic on FileType. No keymaps in this config — for incremental selection, install nvim-treesitter-textobjects separately.

Sessions (auto-session)

Keys	Action
<leader>wr	Restore session for current directory
<leader>ws	Save session for current directory

Sessions are NOT auto-restored — call <leader>wr explicitly.

Which-key

Press <Space> in normal mode and wait 500 ms — a popup lists all keymaps that start with the leader, organized by group. Same for ] (next-style maps) and [ (prev-style maps).