vst3sdk VS Tokamak

But you don't have only Linux, you have (and probably first) OSX and/or Windows and then Linux, and you need an API that works well in that case. Being an in-process dll/so plugin, while fraught with perils gets you to avoid other issues (state, health, restart, identity, etc.)

Also sometimes you don't have a choice, but have to make a dll, for example:

https://github.com/steinbergmedia/vst3sdk or https://ae-plugins.docsforadobe.dev/ and many others. Sometimes it's the only viable choice.

(I wish most have used grpc/flatbuffers/whatever to communicate, but then every RPC call have to be checked/retried/handled, and or shared memory well handled, with (?) locks, etc. - not a trivial thing for someone who is deeply specialized in making a very good effect/renderer/etc instead of dealing with this extra complexity on top).

Yeah, you can use nordaudio which wraps PortAudio which has support for every major audio back-end. As for writing a VST you may have to find a way to wrap or interface with Steinberg's SDK. MIDI support is possible by using an RtMIDI wrapper, which I haven't linked because there are a few of them out there of varying quality and I don't know which is best because I just use ALSA directly for my purposes.

You can read the VST3 SDK manual for yourself here https://steinbergmedia.github.io/vst3\_doc/vstsdk/index.html and access the source here: https://github.com/steinbergmedia/vst3sdk.

You have to use the steinberger SDK to make a vst

https://github.com/steinbergmedia/vst3sdk

But audio plugins come in many formats.

https://github.com/steinbergmedia/vst3sdk#build-the-examples-on-linux

You can do VST3 as GPL. They dual license it. Lots of legalese to read but definitely an option. https://github.com/steinbergmedia/vst3sdk/issues

https://github.com/TokamakUI/Tokamak

I’m also working (slowly) on native Flutter channels:

https://github.com/PADL/FlutterSwift

But this is really targeted at embedded use cases.

There is Tokamak but I don't know how usable it is just yet.

TokamakUI runs via SwiftUI on WASM for web. Apple just hired the creator of the framework.

You can even make web apps by creating web components in swift with Tokamak.

I am playing around with Tokamak just for a bit of fun and learning, and it's been pretty solid so far! Though I want to branch out and play with some dynamic data from a random API, instead of just using mocked/pre-populated data.

There is SwiftWasm that compiles swift into WebAssembly so you can run it in the browser, but swift can't directly manipulate the DOM so you'd still need JavaScript or something like TokamakUI so you can design the front-end portion of your app.