Your dev hangout — live-code, chat, and let @jah keep watch.

jaime is a browser-based place for developers to hang out and chat — with @jah, a lion who's read the docs, and live Strudel coding together. Nothing to install.
Starter patterns

Start from a pattern

Open any of these in a fresh Composition Room, with the pattern already in the shared editor.
Slaughter of the Toad ("Slaughter of the Soul" - At The Gates) (cover)
by santi.codes
drumsmelodystarter
Only for the DMG 101 ("Only for the Weak" - In Flames) (cover)
by santi.codes
drumsmelodystarter
Vegetable Valley - Kirby's Adventure
by tzwaan / Swan, after Hirokazu Ando
drumsmelodystarter
Lavender Town - Pokemon (cover)
by tzwaan / Swan, after Junichi Masuda
melodystarter
Goldenrod City - Pokemon (cover)
by tzwaan / Swan, after Junichi Masuda
melodystarter
Mt. Moon - Pokemon (cover)
by tzwaan / Swan, after Junichi Masuda
melodystarter
Kraid's Lair - Metroid (cover)
by tzwaan / Swan, after Hirokazu Tanaka
melodystarter
Toby Fox - Home (cover)
by tzwaan / Swan, after Toby Fox
drumsmelodystarter
Toby Fox - Megalovania (cover, tzwaan)
by tzwaan / Swan, after Toby Fox
drumsmelodystarter
Vardis Quo
by MariaAreadne
drumsmelodystarter
Toby Fox – Megalovania (cover, MariaAreadne)
by MariaAreadne
drumsmelodystarter
Radiohead - Everything in its right place
by codester
drumsmelodystarter
Determination - Toby Fox (cover)
by Claffystic
bassmelodystarter
Dmitri Shostakovich – Waltz #2
by eefano, after Dmitri Shostakovich
chordsmelodystarter
Happy Birthday
by eefano
drumsmelodystarter
Technotronic – Pump Up The Jam (cover)
by eefano, after Technotronic
drumsmelodystarter
Corona – The Rhythm of the Night
by eefano, after Corona
drumsmelodystarter
Radiohead – Pyramid Song
by eefano, after Radiohead
drumsmelodystarter
Stranger Things (Netflix Series)
by eefano
melodystartersynth
Bug From Heaven (cover)
by eefano, after Tim Smith
drumsmelodystarter
Magic And Ecstasy (Exorcist II OST)
by eefano, after Ennio Morricone
gm-soundfontsmelodystarter
boulders compact
by tzwaan
darkdronestarter
Keyboard Sonata #49 (Eb Maj) (3rd movement)
by Biscuit, after Joseph Haydn
chordsmelodystarter
New Order - Blue Monday (cover / remix)
by Lewis
drumselectrostarter
Meet @jah

A lion in the room

@jah is the AI in every Composition Room's chat. Mention it at the start of a message and it answers — Strudel questions, pattern ideas, explanations.
@jah, a red lion

Example

@jah how does .fast work?
@jah — .fast(n) speeds a pattern up by a factor of n, so s("bd sn").fast(2) plays it twice per cycle.
Invite-only for now
Features

What's in a room

A room is a chat first, with the rest a tab away.
Chat, with @jah in the room
Every room opens on its chat. Ask @jah about Strudel, patterns, or whatever you are stuck on — right where the conversation is.
Live-code together
One shared Strudel document with live cursors and playback that stays in sync for everyone in the room.
An ASCII art panel
Art that swaps on the beat, next to the code. Decoration for the room, in the room.
A pattern library
Curated Strudel patterns to read, play, and send straight into a room.
Games — coming soon
Articles

Ideas behind jaime

Long-form pieces on the research and decisions behind jaime — the why, not just the how.
Behind the scenes
Behind the scenes
The stack, and why this project writes a spec before it writes code — with real examples of where that's paid off, and where it hasn't.
Sign in to read
Why Docs and Articles are two different things here
Why Docs and Articles are two different things here
The Diátaxis framework's four documentation types, and the audit of jaime's own content that motivated splitting Reference from Explanation.
The 10 most popular animation libraries (and why jaime uses none of them)
The 10 most popular animation libraries (and why jaime uses none of them)
A researched popularity ranking, screenshots of each — and a concrete case where the popular answer wasn't the right one.

Stay in the loop

Join the community list. It's the only thing we'll email you about.
Join the community

Icons from game-icons.net (CC BY 3.0): lion by Lorc, chat-bubble by Delapouite, musical-notes by Delapouite, rune-stone by Lorc, scroll-unfurled by Lorc, laptop by Delapouite, campfire by Lorc, sound-waves by Skoll, console-controller by Skoll.

jaime — a hangout for developers. © 2026