It's actually pretty simple.

Phonemes

There are five classes of sounds roughly by manner of articulation, each of which has four places (really ranges) of articulation: uvular-palatal, alveolopalatal, alveolodental, and labial. There is also the glottal stop.

S: /ʔ g ɟ d b/ < ' g j t p >

F: /ɣ ʝ z β/ < x ʒ/sj z v >

N: /ŋ ɲ n m/ < ŋ/ng ɲ/nj n m >

L: /ʟ ɻ l ɯᵝ/ < ʟ/w r l u >

O: /ɤᵝ a e i/ < o e a i >

They break down into consonants (SFN) and vowels (LO). Consonants all have double (geminated) forms, and vowels do not. Voice is not phonemic. There is no distinction between vowels and their semivowels, and when vowels occur in succession they form a rising diphthong.

Allophones include: /d~ɾ ʝ~ʃ β~f ʟ~ʎ ɣ~ʀ/. Pronunciation is fairly permissive, though the phones above are preferred, with tenuis stops. If you're curious, you can list some phones and I'll try to approximate them in Zimemo.

Phonotactics

Words are (C V ) , or alternating from consonants to vowels at least once. Doubled consonants occur if any only if they begin a consonant sequence after the first in a word. This makes word boundaries unambiguous. Because this rule is universal, doubled consonants are not generally marked in the orthography.

Examples: /ɲianna biggɯᵝmmiŋŋe/ could be written <ɲiana bigumiŋe> or <njiana biguminge>.

Also, if anyone has a better way to write /ʟ/, please let me know. I've tried so many things.