Here's another one I read about and gave a try in a VM
https://getmicropad.com/#download Some screenshots
I did have a problem though and got this error when tried to launch the app
[10677:0226/234423.514117:FATAL:setuid_sandbox_host.cc(157)] The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. You need to make sure that /opt/µPad/chrome-sandbox is owned by root and has mode 4755.
as a workaround launching the app with
micropad --no-sandbox
did work. Don't know what the error really means or it is something users should be wary of but there's that so ... just thought of providing another alternative. The app looks pretty good and promising though.
By the way, I've seen this error on another electron based apps as well; Joplin and Etcher, appimages versions. Could it be some electron bug?