Garay is scheduled for inclusion into the Unicode repertoire in version 16.
The Garay font used for this page was not really designed for use with running text. It doesn't place diacritics above base characters, and there is an overlarge gap before ๐ตU+10D4C GARAY VOWEL SIGN O, but gaps are missing around several other letters when side by side. Allowances need to be made for the fact that this is a very early implementation when looking at examples.
Richard Ishida, Garay Character Notes, 23-Jun-2024, https://r12a.github.io/scripts/gara/block