So you’re not trying to maximize salary but care about equity? Not sure I understand. Equity at seed stage startups is like buying lottery tickets, with the main difference that even if the startup has a successful exit 5 years later, you are not likely to get much if you are a salaried employee. Say you get $100k salary and 1% of shares, which becomes 0.1% after dilution. Say the company is bought for $1B. You will get $1M. So the total you have made after 5 years would be $1.5M. If you were working at Facebook at $300k/year you would have earned the same amount. Only the chances of this happening at FB are close to 100%, while unicorns are called unicorns for a reason.

Good luck, commander.

In 5-10yrs you'll be giving this advise to new wave of enthusiastic developers bought for lots of "equity" and little cash.

Use your FB salary and fly to Vegas. You'll have better return on investment than from average startup equity performance.