I use the Pixquare app on my iPad which has this function of importing the Lospec palette by name, and I was very happy to have found this extension for Aseprite, but as I use MacOS unfortunately it is giving an error "load_lospec_palette.lua:7: assertion failed"
If one day you intend to add support for the Mac and need to test it, I'll be available to help with the tests.
Congratulations on the project, I hope it continues.