Your 150k should buy you x% shares and your idea and execution to date should be worth x% more. The remaining equity should be earned by everyone’s future effor

Your 150k should buy you x% shares and your idea and execution to date should be worth x% more. The remaining equity should be earned by everyone’s future efforts. You both need to be full time and exclusively committed. You agree x% each and this follows traditional vesting schedules. I’d expect those % to be higher than if you were also paying salaries. The rest of the equity should be in some sort of pool for future distribution. If one or more of you aren’t fully committed IMO that creates the most problems later. I’ve been on both sides - founder and vesting employee and my contribution here is not following anything other than what I’ve learned through my experiences.