Vowel Harmony + Phonotactics

This is the vowel harmony. Any vowels from different groups can't be in the same words, with the exception of loanwords from other languages in my fantasy world, and given names.

#1: a, e, i, and their short (denoted by acute) versions

#2: o, w, and their short (denoted by acute) versions

#3: u, y, ë, and their short (denoted by acute, but ë doesn't have a short version) versions.

note: digraphs with a group 1 or 2 vowel and then ë are actually valid, because in digraphs ë is a semivowel, never making its intended sound in digraphs.

Phonotactics: Even if words ending j, t, d, s, n, ñ, r, r̃, l, and l̃ are spelled that way, they don't sound like that. Instead, they take an inherent vowel after depending on the group: a/o/ë, even if it isn't written in spelling

Tl and Ll can only be at the start and middle of words and never in consonant clusters.

(CC)V(CC)

(Not really phonotactics but a spelling rule) j isn't written after t, d, s, n, ñ, r, r̃, l, and l̃ , and v isn't after b, p, ff, and f (the v is pronounced after f and ff only in certain dialects)