Yeah, unfortunately without
some kind of other space whose photoperiod can be controlled, you won't be able to do much. But that other space can be quite small and require only a few watts to operate.
That's where you'd have to get creative. But people regularly grew buds to maturity in PC cases for a while there
Good point. Since you will be flipping clones as soon as you have roots, you could grow tiny plants with not a ton of light in a bedroom just to get them to flower or nut up. Get clever. You really don't care how they look, just need them to show you some sexy bits.
So if you want 4 females, plant at least 8 seeds. Clone them asap then continue to veg all 8. They won't get too big before you start culling.
As soon as the clones are rooted, flip them to flower.
Figure out which are female. Trace the males back to the source and "bottom them" hehe. Kill 'em.
if you have more than 4 females, pick the best 4. Proceed normally within plant count. If you didn't plant enough seeds, oh well. Grow 3.
In my state, it differentiates between plants in flower and not. Maybe yours does too and keeping them in veg can help? Also, male plants are not even counted in the numbers.
Or grow autos if you strictly have 1 space. That doesn't help you getting rid of those regs tho.