The web hosting costs basically nothing. Most of the cost comes from the database.
Modern computers are mind-bogglingly powerful. An old laptop off eBay can probably handle the load for business needs for all but the very largest corporations.
As someone who is literally using old laptops to host things from my basement on my consumer line (personal, non-commercial) and a business line (commercial)...
I can host this for under 50 bucks a year, including the domain and power costs, and accounting for offsite backup of the data.
I wish people understood just how much the "cloud" is making in pure profit. If you're already a software dev... you can absolutely manage the complexity of hosting things yourself for FAR cheaper. You won't get five 9s of reliability (not that you're getting that from any major cloud vendor anyways without paying through the nose and a real SLA) but a small UPS will easily get you to 99% uptime - which is absolutely fine for something like this.
If you can understand programming, you can understand Linux. Might take a while to be really confident, but do you need incredible confidence when you have backups? :)
Especially with that meme he showed about vercel is laws +500% markup lmaoo
Don't be afraid of computers, don't be the pink elephant!