So, ... I've made a port of brlaser cups driver although i forgot to add it to MorphOS 3.14
so anyone can check this:
https://drive.google.com/file/d/1ynbdf352nmEl1U_RhPRhAcC2gtr9LDby/view?usp=sharing

rastertobrlaser goes to MorphOS:MorphOS/Data/Printers
PPDs of supported printers included


I don't know if it works with Brother HL-2132 / HL-2135 as don't have any Brother printers but you can try. Other option is to use Ghostscript direclty to check if GS included drivers (hl1250 and hl7x0 output devices) handles this printer.

To call gs:
MorphOS:MorphOS/Data/Printers/gs -sDEVICE=hl1250 -sOutputFile=NETPAR: or USBPAR: filename.ps

PS can be made in VPDF -> Print-> Postscript/ Profilep (ToFile) and output path to ram:filename.ps

If it works, i can make some wrapper/ppd to call ghoscript from PRINTER: system.