[aedis]

Lunacy is amazing for me. Very fast and intuitive.

Tried Penpot, it was laggy and non usable.

[rc1]

https://icons8.com/lunacy

Not open source however

[barrenko]

Thank you both, had no idea about existence of lunacy (the app).

[rubenvanwyk]

I found out about Lunacy because it uses AvaloniaUI; have been a fan of it so far.