The hvcc "Heavy" compiler for Pure Data has added support for GUIs (via DPF, the DISTRHO Plugin Framework). hvcc can generate plugins In LV2, VST, VST3 and CLAP formats. It uses a (large) subset of Pd objects.
From the latest release:
- DPF: basic UI generation using dpf-widgets (imgui + modgui)
This is a continuation of the great work of dromer, who updated hvcc to the current Python versions, and is squashing a few bugs in the process...
I have not tried the new version (yet), but it's a significant step forward.