Documentation for creating desklets?

[subtle rover]

I wonder if there's a good documentation for creating this kind of stuff, i find this: https://projects.linuxmint.com/reference/git/cinnamon-tutorials/write-applet.html
for creating applets, but nothing for desklets, reading source code is the only way?

[distant solstice]

the best way might be taking the current desklets as a reference

https://github.com/linuxmint/cinnamon

https://github.com/linuxmint/cinnamon-spices-desklets