Nitin,
Thanks for continuing to maintain & bring out newer Android versions to N4. Really appreciate your efforts.
Just installed the ROM yesterday. So far so good.
During the first try of installation, my phone threw up Error 7: Partition space not available or something. Was on Nitrogen Oreo before. Downloaded the latest Carbon Pie ROM and tried installing per instructions on Page 1 when the error showed up. Had to download Carbon ROM from Feb and it worked. Dirty flashed the latest version of ROM along with apps and all is good to go.
Just one question, since we are repartitioning the drive, can we increase the space to accommodate larger versions of Open Gapps (at least micro) so that Google Search, Assistant are made available? I tried installing Pixel Launcher, but could not get it work even after installing Magisk 18.1.