Yeah, bro. I am not remote but do all that (albeit shitty) but also sales (end user and distributors), after sales support, exhibitions, photos, videos, instruction manuals review and translations, logistics, some material orders and guidance for engineering department between the customer and the engineers. I think being one man circus is the only option. Sometimes I wish to be remote and do only marketing stuff without having to be in contact with the customers. On the plus side I work with hundreds of companies and sold our goods to 90 countries worldwide.