Assembler AVR Programming

Hello! Is there currently an option for full-fledged AVR programming on Assembler?

Indeed, this has been discussed in this forum here: Pure AVR Assembler programming.

By removing the framework = ... line in the platformio.ini, you essentially just have a bare-metal project and you can write .S assembly files which get processed by the avr-gcc -x assembler-with-cpp .. compiler