I'm currently reading Startupland by Mikkel Svane. While I'm not fully done with the book yet, I think its content resonates with what you're looking for. After

I'm currently reading Startupland by Mikkel Svane. While I'm not fully done with the book yet, I think its content resonates with what you're looking for. After all, Zendesk was self-funded and 100% focused on building something its customers loved (back in that day and age). Perhaps give it a try?