Have all the full-time people split the equity evenly. Have vesting to protect you if people don't contribute - four years with a cliff at one year is good. Fou

Have all the full-time people split the equity evenly. Have vesting to protect you if people don't contribute - four years with a cliff at one year is good. Founding a startup is so stressful, if people are doing it part-time it probably will not be very helpful, so try to get everyone either full-time or just an "advisor" role where they get < 1% of the company.