Earlier quoted context omitted.
Get equity or get out - make the promises binding.
First off, I made the decision to go for equity last time place I worked. That does not always equate to being a founder. I was the only non-founder with equity and when I was fired (for being burnt out but that's another story) I lost in the end. On top of that, being the only technical person and have full control over everything, including domains, hosting, code, etc. It's not really like I can be forced out.
You were paid for those things. You can't hold them ransom.