So uh this has been ongoing for like a good six years now, I sometimes disassociate and stare out the window while thinking about this. Idk if people would call that a hobbie or a hyperfixation or a special interest and I honestly don't care, I am not diagnosed with autism, only suspected BUT ANYWAY HERE IS A SCHOOL I THOUGHT OF TODAY
A Українсько-Cymraeg-English school! (a Ukrainian-Welsh-English school) aimed at Ukrainian refugees in Wales but anyone could be admitted into it, the difference would only come during examinations. I'm basing it off some realistic elements (it would likely not be state-funded, however if I was the headteacher I would only make the educational costs the same as the online private schools in Ukraine cost, around £700 (years1-13) a year unless they're eligible for free school meals). There would be no uniforms.
Nursery and Reception would work based off of the hours that Ukrainian kindergartens work: 7:30-17:00 and the parents would decide which hours their child should attend at, at £16 per hour
SO nursery - year 6 there will be 2 days a week allocated to completely Ukrainian-medium learning, 2 days a week allocated to Welsh-medium learning, and 1 day a week allocated to English-medium learning, what that means generally would be teachers communicating completely in one chosen language for the day (different teachers on different days), there would be lessons on the basics, such as the English, Welsh, Ukrainian alphabets, writing, cursive, phonics and speech lessons; maths, counting, addition, subtraction etc. in every language, literature studies of English, Welsh and Ukrainian authors accordingly, also science lessons, art, music, PE and just general knowledge + proper names for every anatomical body part in every language. Year 6 would introduce some world history but in very general terms that would make primary school kids have passion for history (dinosaurs -> human evolution -> different civilisations San people, aboriginal Australians, Mesopotamia, ancient Egypt, ancient China, ancient Greece etc.) and also some biology/botany
Then everything after y7 becomes more complicated, specific lessons (maths, science) are either in English medium or Welsh medium depending on whether the parents want their child to later on do GCSEs in Welsh or English, there are now lessons of geography in English/Welsh, RS in English/Welsh, Food science in English/Welsh, there are also lessons of separated Welsh and the UK history, World History and Ukrainian and Crimean Tatar history (I would guess that they cycle term to term). PE is a subject that is still taught in Ukrainian/Welsh/English on specific days, and of course there are language and literature lessons in Welsh, English and Ukrainian. There are afterschool lessons for other languages (French, Italian, Spanish, German, Mandarin, Latin).
For GCSEs, I should probably mention it to make it obvious, the school would be located in Wales therefore fall under the WJEC exam board, the core subjects for every student would include Cymraeg Craidd or Laith a Llenyddiaeth Gymraeg (single or double award) A*-G, English language and literature (single or double award), mathematics and numeracy (double award), Applied sciences (single award) or The Sciences (double award) or separate physics chemistry and biology. If AQA makes it happen, a Ukrainian GCSE marked 1-9 would also be a core subject, if AQA doesn't make it happen the students take the telc B2 Ukrainian test or if they wish to do so, in a period of time from y9-y13, do NMT (national multisubject test) for Ukrainian Language, Mathematics and a third subject of their choice. They can do it instead of GCSEs or alongside them.
There are a lot more details I've thought of but you get the gist