Do I understand correctly? `wasmWasi` is a totally...

# webassembly

[Robert Jaros]

Do I understand correctly? wasmWasi is a totally different target in KMP? Unlike JS/node which is just a different "kind" of js target?

[Robert Jaros]

Can I use libraries compiled for Kotlin/Wasm (the ones working correctly with wasmJs like compose, coroutines, serialization, datetime) with wasmWasi target?

[Robert Jaros]

Just adding wasmWasi target to my js/wasmJs project does not work (gradle complains with lots of errors like No matching variant of org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.2-wasm1 was found.)

[Svyatoslav Kuzmich [JB]]

WASI is a new different KMP target. kotlinx-coroutines does not support it yet

[Svyatoslav Kuzmich [JB]]

While you can share the common code between wasmJs and wasmWasi , you can’t mix these libraries to build a single artefact

[Robert Jaros]

Is it just a matter of recompiling coroutines or other libraries, which currently support wasmJs? Or is there more work required to support wasmWasi?

[Svyatoslav Kuzmich [JB]]

Its more work. Mostly about designing event loop since we can’t use the one built into JS.

[Robert Jaros]

Are there any plans supporting wasmWasi target with compose multiplatform (at least the compose runtime part)?

[Svyatoslav Kuzmich [JB]]

We don’t have plans to port compose to WASI. WASI would need to provide some graphics and mouse/keyboard/touch input APIs to build the UI, which is not a priority as far as I know.

We would be curious to hear more about use-cases for a non-UI compose runtime port.

[Robert Jaros]

I'm building a compose runtime powered framework, which targets both JS and Wasm and which can render UI both to DOM and to HTML string (I'm thinking about easy SSR and pre-rendering, but there could be other use-cases for this 😉) . Currently I can successfully run this on NodeJS. But I was thinking it would be great to have WASI support as well.

[hfhbd]

Another use-case for compose runtime (not ui) is molecule: https://github.com/cashapp/molecule to use it for business logic on wasi too

[Robert Jaros]

I've just realized I was in fact looking for wasmJs/node and not wasmWasi. Somehow I've missed it's already supported (with a bit of manual versions config) and I can successfully run my wasm code on nodeJS 🙂