Files
ai-app/iris
irisandClaude Opus 5 10500ae8aa RUST.md: record what E1 showed, and drop an overreaching comment
E1 is part-done: the Masonry demo builds with cargo-ndk and Gradle and
renders, and ui-trace reads its AccessKit tree, so the bench rig's
tap-by-name would work against a Masonry screen. The keyboard half -- the
condition the whole framework decision turns on -- was not reached, so the
box stays open. Also records that two variables changed at once between the
crashing and working runs, so neither can be credited yet.

The vsync comment claimed a redraw burst here lands on the host's desktop.
That was my attribution for a freeze which turned out not to be mine, and
it is machine-specific reasoning that has no business in a library's
source. The battery argument is the whole reason and stands on its own.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 18:38:35 -04:00
..

iris

My experimental attempt at a rust ui library (also my first ui library).

It's currently designed around using retained data structures (widgets), rather than diffing generated trees from data like xilem or iced. This is an experiment and I'm not sure if it's a good idea or not.

Examples are in examples, eg. cargo run --example tabs.

Goals, in general order:

  1. does what I want it to (text, images, video, animations)
  2. very easy to use ignoring ergonomic ref counting
  3. reasonably fast / efficient (a lot faster than electron, save battery life, try to beat iced and xilem)

dev details

not targeting web rn cause wanna use actual nice gpu features & entire point of this is to make desktop apps / not need a web browser

general ideas trynna use rn / experiment with:

  • retained mode
  • specifically designed around wgpu so there's no translation
  • postfix functions for most things to prevent unreadable indentation (going very well)
  • events can be done directly where you draw the widgets
  • almost no macros in user code & actual LSP typechecking (variadic generics if you can hear me please save us)
  • relative anchor + absolute offset coord system (+ "rest" / leftover during widget layout)
  • single threaded ui & pass context around to make non async usage straightforward (pretty unsure about this)
  • widgets store outside of the actual rendering so they can be moved around and swapped easily (unsure about this but seems to work good for now)

under heavy initial development so not gonna try to explain status, maybe check TODO for that; sizable chance it gets a rewrite once I know everything I need and what seems to work best

it's called iris because it's the structure around what you actually want to display and colorful