Building a B2B developer tool, pre-revenue, bootstrapped trying to figure out the most effective zero cost channels before I consider spending anything. ​ curious what actually worked for people here specifically:- ​ Did cold outreach work, or was it mostly inbound from content/communities? How long after launch did your first paying customer actually show up? What channel gave you the best signal-to-effort ratio Reddit, LinkedIn, cold email, something else entirely? ...