You say "polishing", which implies minor details. Could you cut a bunch of stuff, and release next week? The real adventure doesn't start until you've deployed. You might even find out that the polishes don't even matter that much, and something that wasn't even on your roadmap is everything.

Unless your previous experience was as the first engineer at a startup, your previous experience was probably preparing you to iterate on an existing product (late phases of phase 1 or phase 2), or a new product for existing customers. You had a base level of expectations. Previously, you were forced to released a polished version, but you had the resources to do it. In your new capacity, you (probably) don't have that. There's something to be said for just throwing out there a minimum version of the product, and polishing it later. You'll save weeks of wasted effort probably.