Ignis-quis-vir's Proto-Language

Vowels
Your language has a vertical vowel system; that means that your language does only distinguish between high vowels (marked in yellow), middle vowels (marked in orange) and low vowels (marked in pink). The backness and roundedness of the vowels does not change the meaning of words. Which type of vowel is used depends on the consonants that precede the vowel. Vowel length is not phonemic!

Consonants
Vowels following consonants marked in blue are front vowels, vowels following consonants marked in green are central vowels and vowels following consonants marked in red are red vowels. In a consonant cluster, the vowel changes according to the last consonant in the cluster.

[β] is an intervocalic allophone of /ɸ/; [z] is an intervocalic allophone of /s/; [ɣ] is an intervocalic allophone of /x/. All of these allophones also appear in consonant clusters with voiced plosives.

[m] is an allophone of /n/ before bilabial consonants; [ŋ] is an allophone of /n/ before velar consonants

   Stress
The stress always is on the first syllable of the word root.

Phonotactics
In general, syllables are C(C(C))V(C)(C).

Onset
The onset can be:
 * any consonant
 * /s/, /ʃ/ or /ɕ/ + voiceless plosive (+ /r/) or /l/ or /n/
 * /ɸ/ or /x/ + /t/
 * voiced plosive + /j/ or /l/

Nucleus
The nucleus can only be a single vowel; check the explanations above!

Coda
The coda can be:
 * nothing
 * any voiceless consonant or /n/ or /l/ or /r/
 * voiceless fricative + voiceless plosive
 * /n/ + voiceless fricative or voiceless plosive
 * voiceless plosive + /r̥/