Have you tried HeliBoard? I think it has the best multilingual support for all these FOSS keyboards, but mind you, you have to manually load the dictionaries for the languages you want, and same thing for the swipe libraries, but it’s all documented and linked on the GitHub page.
Have you tried HeliBoard? I think it has the best multilingual support for all these FOSS keyboards, but mind you, you have to manually load the dictionaries for the languages you want, and same thing for the swipe libraries, but it’s all documented and linked on the GitHub page.