Key	Does
`Ctrl+h/j/k/l`	Move between Neovim splits and tmux panes, same keys
`Shift+l` / `Shift+h`	Next / previous open file, in the order the tabs are shown
`Ctrl+p` / `Ctrl+n`	Jump 8 lines up / down
`[[` / `]]`	Start / end of the construct the cursor is in (treesitter)
`<leader>n` / `<leader>p`	Next / previous occurrence of the word under the cursor
`s` + letters + label	Jump anywhere on screen: type a few letters of the target, then the label that appears there
`S`	Select the function, block or argument around the cursor
`[x`	Jump up to the enclosing function, which stays pinned at the top while you scroll

Editing

Key	Does
`gsa` / `gsd` / `gsr`	Add / delete / replace surrounding quotes and brackets — `gsr"'` turns `"x"` into `'x'`
`<leader>fr`	Find and replace across the whole project, with a preview of every change
`<leader>U`	Undo history as a tree, including edits plain `u` can no longer reach
`<leader>ac`	Send the file, or the selected code, to Claude in the next tmux pane

Text objects

Key	Selects
`aq` / `iq`	A string with / without its quotes — any quote style, multi-line included
`af` / `if`	A function, outer / inner
`ac` / `ic`	A class, outer / inner

Files and projects

Key	Does
`<leader>-`	Open lf with the cursor already on the current file
`<leader>sf` / `<leader>sg`	Find files / live grep
`<leader>sp`	Switch project — saves this one's session, restores the next one's
`<leader>sP`	Bounce back to the previous project
`<leader>gw`	Switch to another worktree of this repo, by branch
`<leader>gd`	Review every uncommitted change, side by side, like a pull request
`<leader>gh`	History of the current file, commit by commit

Notes

A vault of plain Markdown files in ~/personal/notes, through obsidian.nvim. No Obsidian app needed.

Key	Does
`<leader>on` / `<leader>ot`	New note / today's daily note
`<leader>of` / `<leader>os`	Find a note by name / search inside notes
`<leader>ob`	Notes that link to this one
`[[`	Link to another note, with completion

Notebooks

Jupyter notebooks open as Markdown with Python cells, run in a kernel, and save back to .ipynb with their outputs. Optional — one line in the config turns it off.

Key	Does
`<leader>is`	Set up everything a notebook needs, including a kernel for the project's own venv
`<leader>in`	New notebook in the current folder, ready to run
`<leader>ir`	Run the cell under the cursor, or the selection
`<leader>ia` / `<leader>iA`	Run this cell and every one above / run all cells
`<leader>io` / `<leader>ih`	Open / hide the output window

Python REPL

Key	Does
`<leader>rr`	Toggle a Jupyter REPL in a split
`<leader>rs`	Send the statement or block under the cursor and move to the next; in visual mode, send the selection
`<leader>ro`	Kernel manager: start, stop, rename

tmux

The prefix is Ctrl+Space. Press it twice to send a real Ctrl+Space to the program in the pane. Sessions survive a reboot: they are saved every 10 minutes and come back when tmux starts, with Neovim reopened and Claude continuing its conversation.

Key	Does
`prefix + f`	Pick a project, and open it as a session with editor and terminal side by side
`prefix + Ctrl+f`	Search the open sessions and switch to one
`prefix + Tab`	Back to the last project (`Shift-Tab`: the last window)
`prefix + W`	Open another branch as a worktree, in its own session with editor and Claude
`prefix + ;`	Collapse Claude out of sight (it keeps running) / bring it back exactly as it was
`prefix + n`	Today's note in a floating window, from any pane
`prefix + t` / `prefix + g`	Floating scratch shell / lazygit
`prefix + -` / `prefix + _`	Split stacked / side by side

Inside lf

Key	Copies
`yn` / `ys`	File name / name without extension
`yp` / `yd`	Absolute path / containing directory
`yr`	Path relative to the repo root
`i`	Read the whole file in Neovim, read-only, with the usual keys — search, select, copy. `q` goes back

y is a prefix there, so lf's built-in copy is yy. af / ad create a file / directory, D deletes for good, after listing what will go and asking y/N. Clipboard commands are macOS-only for now (pbcopy).

Keymaps

Moving around