I finally started getting stronger in the gym when I stopped going to failure on everything. I got in the best endurance shape by going on a steady comfortable pace for progressively longer periods of time.
it gets more complicated when you need to also display something like "last comment: <author> <3 days ago>" for each post, or if the comment counts need to be filtered by various flags/states/etc.
of course, it's all possible with custom SQL but it gets complicated quick.
On that machine you can (easily) make an arbitrary number of VMs.
Each VM has their own URL that you can share (or make private).
See features: https://exe.dev/docs/customization