"It takes a helluva drummer to sound better than no drummer at all" - some famous drummer
You beat me to it. (FWIW that quote is usually attributed to Chet Baker.)
I've done plenty of drummer-less gigs in my time.
It wouldn't work for every genre or group. But when it does work, it can be pretty sweet.
Not to throw that entire chair under the bus (IME anyone can make or break an ensemble). But it is funny how sometimes when you do go drummer-less, all those endless nagging problems with volume, feel and tempo can suddenly just vanish.
I was going to say it would never fly for rock, but I just remembered I did a rockabilly duo last month and that went over great. (The guy duo'd with a drummer the week before and they got a bunch of complaints.)
I worked with a bluegrass band last weekend and that also felt awesome! (Good enough to make me want to retire from all these other pesky styles & just do that.)
For both of those I was playing double bass with gut strings, which feels like it's practically made for adding some percussive "slap" along with roots & 5ths.
IIRC Larry Graham originally pioneered the slap style on bass guitar to fill out the sound on drummer-less gigs with his mom! I haven't had much success trying to replicate that. (I don't have LG's gift – almost no one does... Also, my mom doesn't play any instruments.)
Drum machines & sequences have been a thing since before I started playing music – so I can't completely knock it. I find they usually only work when the whole vibe morphs to accommodate. (As may occur with electronica, hip hop & a lot of newer pop.)
One of the most embarrassing gigs I've ever played was when they tried to make a drum machine work in a small restaurant, playing more traditional material where you'd expect to have a live human keeping the beat. (Having a bunch of different patterns & fills programmed in for all the songs didn't do much to reduce the lameness.)
In a perfect world, it would be super easy to find a drummer who is tasty, cooperative & capable. (And get the perfect guitarist, pianist & singer while we're at it.) In the world we live in, I find sometimes a strong BL can effectively wrangle players who would wreak havoc in a less-well-directed group.
Good luck with your project!