What would a keyboard optimised for Luxembourgish look like? Now with an actual keyboard!

An optimised layout for a polyglot country 5 years ago I discussed what features a keyboard optimised for Luxembourg should have. I’m talking about Luxembourg the country, and not Luxembourgish the language, because in Luxembourg no one types only Luxembourgish. The most commonly typed language is probably French, and English a close second. German follows in third and then Luxembourgish (some…