DevTools Cheat Sheet

DevDocs Setup (First Time) ▼

After installing plugins, run these commands in Neovim to download offline docs:

:DevdocsFetch
:DevdocsInstall python javascript go rust c

Ghostty (Terminal) ▼

Ghostty Docs Config Reference

Window & Tabs

Key	Action
`Cmd + N`	New window.
`Cmd + T`	New tab.
`Cmd + W`	Close terminal/split.
`Cmd + Alt + W`	Close tab.
`Cmd + Shift + W`	Close window.
`Cmd + 1-8`	Jump to tab by number.
`Cmd + 9`	Jump to last tab.
`Cmd + Shift + [` / `]`	Previous / next tab.
`Ctrl + Tab`	Next tab.
`Ctrl + Shift + Tab`	Previous tab.
`Cmd + Enter`	Toggle fullscreen.

Splits

Key	Action
`Cmd + D`	Split right (vertical).
`Cmd + Shift + D`	Split down (horizontal).
`Cmd + [` / `]`	Previous / next split.
`Cmd + Alt + Arrows`	Navigate splits directionally.
`Cmd + Ctrl + Arrows`	Resize splits.
`Cmd + Ctrl + =`	Equalize all splits.
`Cmd + Shift + Enter`	Toggle split zoom.

Navigation & Search

Key	Action
`Cmd + F`	Start search.
`Cmd + G`	Next search result.
`Cmd + Shift + G`	Previous search result.
`Cmd + Shift + F`	End search.
`Cmd + Shift + Up`	Jump to previous prompt.
`Cmd + Shift + Down`	Jump to next prompt.
`Cmd + Home`	Scroll to top.
`Cmd + End`	Scroll to bottom.

Clipboard & Text

Key	Action
`Cmd + C`	Copy selection.
`Cmd + V`	Paste from clipboard.
`Cmd + A`	Select all.
`Cmd + K`	Clear screen and scrollback.
`Cmd + +` / `-`	Increase / decrease font size.
`Cmd + 0`	Reset font size.

Utilities

Key	Action
`Cmd + Shift + P`	Command palette.
`Cmd + ,`	Open config.
`Cmd + Shift + ,`	Reload config.
`Cmd + Alt + I`	Toggle inspector.
`Cmd + Z`	Undo.
`Cmd + Shift + Z`	Redo.

Line Editing (Terminal)

Note: These work at the shell prompt via Ghostty key mappings.

Key	Action
`Cmd + Left`	Jump to beginning of line (`Ctrl+A`).
`Cmd + Right`	Jump to end of line (`Ctrl+E`).
`Cmd + Backspace`	Delete to beginning of line (`Ctrl+U`).
`Alt + Left` / `Right`	Jump word backward / forward.

Git Workflow ▼

Lazygit Git Docs

Command	Description
`lg`	Lazygit. Opens a powerful terminal UI for Git.
`gs`	`git status -sb` (Short status).
`gaa`	`git add .` (Add all).
`gc "msg"`	`git commit -m "msg"`.
`gp`	`git push`.
`gpf`	`git push --force-with-lease` (Safer force push).
`gpl`	`git pull --rebase --autostash`.

Neovim (Editor) ▼

Neovim Docs Telescope NvimTree Trouble

Leader Key: Space

General & Files

Key	Action
`Space e`	Toggle File Explorer (NvimTree).
`Space ff`	Find Files (Telescope).
`Space fg`	Live Grep (Search text in project).
`Space fo`	Find Recent/Old Files.
`Space fb`	Find Buffers.
`Space fh`	Find Help Tags.
`Space fd`	Find Diagnostics.
`Space ft`	Find TODOs.
`Space gg`	Open Lazygit.
`Space mp`	Toggle Markdown Preview.
`C-\`	Toggle floating terminal (ToggleTerm).
`Space u`	Toggle Undo Tree.
`Space o`	Toggle Symbol Outline (Aerial).

Code & LSP

Key	Action
`gd`	Go to Definition.
`gr`	Find References.
`K`	Hover Documentation (LSP or per-language fallback).
`Space K`	Search DevDocs (offline docs for 300+ languages).
`Space cf`	Format Code.
`Space rn`	Rename Symbol (live preview).
`Space ca`	Code Action.
`Space ci`	Incoming Calls (call hierarchy).
`Space co`	Outgoing Calls (call hierarchy).
`Space dd`	Show Error/Warning (Float).
`[d` / `]d`	Previous / Next Diagnostic.
`[q` / `]q`	Previous / Next Quickfix Item.
`Space xx`	Toggle Diagnostics (Trouble).

Runtimes & Languages ▼

nvm pyenv rbenv Go Rust

Tool	Usage
Node.js	Managed by `nvm`. Run `nvm install 20`.
Python	Managed by `pyenv`. Run `pyenv install 3.12`.
Ruby	Managed by `rbenv`. Run `rbenv install 3.3.0`.
Go	Installed via Homebrew. LSP: `gopls`. Formatters: `goimports`, `gofumpt`.
Rust	Installed via Homebrew. LSP: `rust-analyzer`. DAP: `codelldb`.
Java	`openjdk` installed. Neovim uses `jdtls` & `google-java-format`.
C/C++	`clang` / `llvm` installed. Neovim uses `clangd` & `clang-format`. DAP: `codelldb`.
TypeScript	Uses `ts_ls`, `prettier`, `eslint`. Ensure `tsconfig.json` exists.
PHP	Uses `intelephense` & `php-cs-fixer`.

Shell & Navigation (Zsh) ▼

zoxide eza bat fzf zsh-autosuggestions

Command	Tool	Description
`z <dir>`	zoxide	Smart `cd`. Jumps to directories based on frequency (e.g., `z dot` → `~/Sites/dotfiles`).
`ls` / `ll`	eza	Lists files with icons, git status, and headers.
`tree`	eza	Shows a directory tree (2 levels deep).
`cat <file>`	bat	Displays file contents with syntax highlighting and line numbers.
`Ctrl + r`	fzf	Fuzzy search your command history.
`Ctrl + t`	fzf	Fuzzy find a file and paste its path into the command line.
`Ctrl + Space`	autosuggest	Accept the grey “ghost text” suggestion.

System & Config Management ▼

Homebrew Oh My Zsh

Command	Description
`update`	Runs all updates: macOS, Homebrew, and Oh My Zsh.
`bbu`	Brew Bundle Update. Dumps current brew packages to the repo’s `Brewfile`.
`zshconfig`	Opens `.zshrc` in Neovim.
`reload`	Reloads `.zshrc` without restarting the terminal.
`mkcd <dir>`	Creates a directory and immediately `cd`s into it.

Testing, Debugging & Tasks ▼

Neotest nvim-dap Overseer Flash Diffview

Testing (Neotest)

Key	Action
`Space nt`	Run Nearest Test.
`Space nf`	Run All Tests in File.
`Space ns`	Toggle Test Summary.
`Space no`	Show Test Output.

Debugging (DAP)

Key	Action
`F5`	Start / Continue.
`F6`	Stop / Terminate.
`F9`	Toggle Breakpoint.
`F10`	Step Over.
`F11`	Step Into.
`F8`	Step Out.
`Space du`	Toggle Debug UI.

Tasks & Running (Overseer)

Key	Action
`Space tr`	Run Task (Auto-detected: make, npm, cargo, go, etc.).
`Space to`	Toggle Task Output.
`Space tc`	Run Custom Command.

Git (in Neovim)

Key	Action
`Space gg`	Open LazyGit.
`Space gd`	Git Diff View (Diffview).
`Space gh`	Git File History (Diffview).

Navigation (Flash)

Key	Action
`s`	Flash Jump. Jump to any character on screen.
`S`	Flash Treesitter. Select logical blocks of code.

Tmux (Multiplexer) ▼

Tmux Wiki TPM vim-tmux-navigator

Prefix: Ctrl + a (Replaces standard Ctrl + b)

Key	Action
`ta`	Smart Alias: Attaches to the last session or creates a new one.
`Ctrl + h/j/k/l`	Seamless Navigation: Move between Tmux panes and Neovim splits.
`Prefix + \|`	Split vertically.
`Prefix + -`	Split horizontally.
`Prefix + c`	New window.
`Prefix + z` / `m`	Toggle fullscreen (zoom) for current pane.
`Prefix + Space`	Jump to last active window.
`Prefix + I`	Install Plugins (Press this if plugins look missing).
`Prefix + [`	Enter copy mode (Use `v` to select, `y` to copy).
`Prefix + d`	Detach from session (leave it running in background).