[dither8]

Don't forget Vital which is Matt's newer synth. It continues to be open-source as well.

https://vital.audio/

https://github.com/mtytel/vital

[actualwitch]

Did vital have no updates whatsoever after release 3 years ago, or are the updates not open source?

[Kye]

There are some threads on the forum, but no answer to the question of whether any new code will appear.

https://forum.vital.audio/search?q=source

[Iridescent_]

So what would be the difference between the two of them?

[Tomte]

Vital is a wavetable synth, Helm a "traditional" subtractive synth.

[dmix]

There's a good course on skillshare/udemy that teaches synthesis and sound design using Vital

https://www.udemy.com/course/the-complete-beginners-guide-to...

[NikkiA]

Vital is effectively NOT open-source, the source available on github is a single snapshot of the source as it was when 1.0 was released, it has not been updated since, and 1.5.5 is vastly different.