A developer has created an open source alternative to KWGT called Sukko.

It is an open source Android app for creating widgets for home and lock screens.

Here’s the project website: https://sadellie.github.io/sukko/

His repo: https://github.com/sadellie/sukko

Its currently in experimental stage and will take a while until a full release.

Current stage

Experimental

• Accessibility features are not implemented
• Expect huge changes in functionality
• Clean installation recommended. Data migration is not guaranteed
• External code contributions are welcomed, but I recommend waiting for alpha stage. There are no contributing guidelines at the moment
• Bug reports and feature requests are discouraged. I know what ku*tom is
• Not for daily usage despite implemented features and overall stability
• Please avoid redistribution on “free and open source android app repositories” 🟢🟦

Development updates: https://t.me/sadellie_dev

Compatibility

• Android 12 / API 31 and higher
• vivo - no, lol
• Pixel and close to AOSP ROMs
• Anything else - visit https://dontkillmyapp.com/ and follow instructions. If that didn’t help - open an issue or buy Pixel