Install mame-tools whatever the latest is available for your distro

Download game-convert source folder

Extract it to wherever (i prefer home directory since it's easiest to manage)

Now navigate to your bin folder in your root directory (this is where mame-tools puts chdman for pretty much all the distros i tested this with)

copy chdman from bin to the game-convert source folder rename it to chdman version latest if you want to keep the other two chdman options or just delete chdman 4 and 5 if you only want to use latest chdman

Before we do anything else the only files you need in game-converter source folder are
chdman version latest game-converter.sh and game-converter.png(optional if you want to make an easy to find menu shortcut in desktop environments like XFCE)

Now open the game-convert.sh into whatever text editor you use in my case i just use mousepad

in this sh file you should see the following entry

Define chdman version variables

opt_chdman4="chdman version 4 (0.145)"
opt_chdman5="chdman version 5 (0.221)"

We need to point these to the location of the chdman files
So basically in my case it would go from

Define chdman version variables

opt_chdman4="chdman version 4 (0.145)"
opt_chdman5="chdman version 5 (0.221)"

To

opt_chdman="/home/usernamehere/game-converter-latest/chdman version 4 (0.145)"
opt_chdman="/home/usernamehere/game-converter-latest/chdman version 5 (0.221)"
opt_chdman="/home/usernamehere/game-converter-latest/chdman version latest (Latest)"

Then save that

Finally test from terminal by running
sh game-converter-sh

The end result should be the zenity gui but this time with a third option in the chdman selection menu called chdman latest

Zenity progress opens up a box for each item in loop, when it should be 1 box for each loop. When you are trying to do something, and the next box pops up, the operation gets cancelled out. The conversion process needs to be in a subshell (could be wrong) i order for zenity progress's cancel button to work. Ideally, a working progress bar "should" fix this. No idea how to accomplish this. If you know how to do this, please submit a pull request. Thanks

Sounds weird but we finally have a really good PS2 emulator for Android called Aethersx2 based off of pcsx2 and there's a ton of people that don't have PC's and we all need to conserve sd card space. Here's an invite for the discord server
https://discord.com/invite/JZ7BkeEdrJ