Tiled terminals · markdown · one window

A command center for a
fleet of coding agents.

Claude Code, Codex, Gemini — tiled in one window, smooth enough to forget they're running.

MIT · open source / Windows first / macOS & Linux soon
Lume ~/projects/auth
✻ Claude Codewsl · ~/projects/auth
Claude Code · sonnet 4.5
> refactor session onto the token store
 
Update(src/auth/session.ts)
+ import { tokenStore } from "./tokenStore"
- localStorage.getItem("session")
▌ Codexpwsh
add the migration script
Editing migrate.ts
npm run build
✓ built in 3.2s
✦ Geminiwsl
summarize the diff
3 files · +84 −12
thinking…
pwsh·~/projects/auth 3 panes·3 agents

01 Smoothness

It doesn't tear under load.

Bytes stream Rust → renderer, never through the UI state. Flood every pane — typing still lands first.

Lume running four tiled Claude Code and OpenAI Codex agent sessions at once
Four agents live at once — Claude Code & Codex, auto mode on, not a dropped frame.
Acceptance test · four concurrent agents

Built to pass the 2am test.

Three agents streaming, a release build, you typing through all of it — at once. No tearing.

<30ms
typing latency
32ms
ipc batch window
<500MB
memory, 4 panes
<2s
cold start
Motion

One curve, everywhere.

Every motion on the same ease-out. cubic-bezier(.16, 1, .3, 1) — fast in, long settle.

Renderer

WebGL terminals, real PTYs.

xterm.js on WebGL, fed by portable-pty. 8 MB ring buffer per pane.


02 Tiling

Split without the seams.

One pane becomes many. Every pane keeps streaming; nothing reflows with a jolt.

Ctrl+Alt+→split right
Ctrl+Alt+↓split down
Lume~/projects/auth
✻ Claude Code~/auth
wire up the refresh flow
Update(tokenStore.ts)
+ async refresh()
▌ Codexbuild
npm run dev
➜ local: 5173
✓ ready in 240ms
✦ Gemini~/auth
review the changes
3 files · +84 −12

03 Markdown

Read what they write.

A rendered viewer beside your panes — see the plan while the agents work it.

Lume showing CONTEXT.md rendered in the Quick Viewer drawer beside running Claude Code agent panes
Quick Viewer open on the right while agents stream on the left · Ctrl+Click a path to open, Ctrl+E to edit.

04 Keyboard-first

Your hands never leave home row.

Every action has a key. Rebind any of them in config.toml.

Split right / up / downCtrlAlt
Move focus between panesCtrl
Toggle markdown editorCtrlE
Toggle Quick ViewerCtrlShiftM
Toggle sidebarCtrlB
Close focused paneCtrlW
Copy / paste in a terminalCtrlShiftC
Keyboard shortcuts viewerCtrl?

05 Themes

Four palettes. One aesthetic.

Dark, always. Same geometry and motion — only the colour shifts.

Cobalt default
Coral
Tokyo Night
Gruvbox
Click a palette to re-theme the whole page live.
Shell
Tauri v2 · Rust + WebView2
Terminals
xterm.js · WebGL
License
MIT · open source
Platforms
Windows · mac/linux soon
Free · MIT · build from source

Open the command center.

Clone it, build it, make it yours. Built by a builder, for builders.

$ git clone https://github.com/rithwik1510/Workflow