@ryo @TechnicalSuwako @udon The technology that is normally used in gene editing these days is CRISPR. It doesn't use mRNA but rather gRNA. CRISPR isn't expensive complex. You can even buy DIY CRISPR gene editing kits online and they are completely legal.
I've actually tried to genetically modify bacteria once (to make it glow in the dark), but failed to do so because my freezer isn't cold enough to store the RNA without decaying.