I've spent a lot of my career marketing to developers, and spamming their GitHub account might be top 1 or 2 worst marketing tactics you can use.
Cold emailing rarely works by itself. Cold emailing developers via emails you pulled from their GitHub accounts? At that point, you're actively harming your brand, and may as well just send them spam diet pill ads.
Cold emailing rarely works by itself. Cold emailing developers via emails you pulled from their GitHub accounts? At that point, you're actively harming your brand, and may as well just send them spam diet pill ads.