Hey! Making Linux Builds of modern RPGMaker games is actually really easy because the technology behind is basically just an HTML5 game opened in a chromium window. Just need to replace the windows binaries with the Linux one and it auto works.
As for feedback, since the 1.0 version of the game is going toward the finishing phase with only half a year of dev time or so remaining, low-hanging fruits that can be tackled within that remaining time frame would be the most useful.