Self-hosted Languagetool instance and iOS app

Hello there. Thanks a lot to the developers for this great software!
Now, I haven’t found a way to link the iOS app/mobile Safari extension to a self-hosted instance. Am I overlooking anything or is this not possible?

Thanks in advance, any help is appreciated!

I suggest you use https://help.languagetool.com to get help for this, as we are moving all support requests to that site (see How to get help/support).