The other week I learned about ubuntu touch from my friend TK bay and xda it’s a distro of linux os for android it’s still in development for this device so it still has many bugs it’s not meant for a daily driver.butif u would like to test it out here is the method for installing it
Step 1. U must download and install the ubports installer on to your pc.
Step 2. Install twrp onto your op3/3t then do a full wipe cashes/dalvic cashes/system/data then format data.
Step 3.plug your device into the pc then run the installer u downloaded.
Step 4. Finally follow the install instruction on your pc and click install that’s it.
Then enjoy video will be out soon then I’ll post it