HN user
I'm not an entrepreneur, just a developer with some side projects and zero marketing skill. So this would be ideal for me. However, given my non-entrepreneur mindset, I immediately think it's too expensive / does not pay off for me when I don't see any pricing indicators. It would be great to see some success stories with numbers.
A third option would be to take a break from work and try to learn to write good code
I would say that learing to write good code takes practice and feedback, so if you want to stay in software engineering stay in your job.
Maybe switching to a field where basic coding skills come in handy, e.g. data science, would be an option.
There is more than enough liquid manure, forcing farmers to pay for its removal (at least in Europe, that is). Also, it can be used only at certain points in time to avoid food poisoning.
I assume this is the same as using Terra preta, which can be produced in a sustainable way and stores carbon dioxide.