I have successfully installed camunda-modeler-linter-plugin but I can not install the custom linter plugin. I tried first on my macos (i had 4 errors) and the custom plugin on the modeler was greyed out. Then I tried to do the same on windows but custom linter plugin does not appear at all on the modeler. I need this plugin to create a custom extension to show risk handling in bussinesses and is quite important. I really hope someone can help me!
Try with this one GitHub - jonathanlukas/camunda-modeler-linter-default-rules
It is very easy to install:
download it folder, unpack, then put the folder in the resources/plugin folder and you are good to go