airwindows VS OpenAudio

Or you could try the Airwindows plugins. They're not guitar effects, per se, and they don't have UIs, but there's a huge (!) assortment of plugins that do strange and often interesting things. Those should work without issue, and you'd definitely be able to control and/or automate their parameters.

Added it to the big list of Open Audio! https://github.com/webprofusion/OpenAudio

A quite extensive list of open source audio plugins (au/vst) on GitHub

If you want to look at examples, here's a list of open source ones: Github OpenAudio. For start I would choose a small one. Start with something simple, but at least includes some simple audio part.

I started by going through a list I found of open source audio projects on Github, working my way through synths specifically because that's what I'm most interested in starting with. I decided to give JUCE another shot as well with the confidence gained from having troubleshot and figured out so many pieces of software throughout my open source journey, and found it much more forgiving this time. I checked out a couple projects with it, which ended up being very straightforward as JUCE has a dedicated build system. You just open a .jucer file and it lets you configure and generate projects for your given IDE. After checking out a few I decided to take another look at Bespoke.

Also, mostly there are no vaporwave-specific plugins, producers of the genre just use samples from old songs slowed down, vintage synths, drone synths (remembering vaporwave's origin from noise-style music) and reverb to achieve that specific style Btw, some free and open source plugins, many of which should probably work fine in LMMS are also listed here: https://github.com/webprofusion/OpenAudio