Thats already handled by lemmy ui currently. The same link posts will collapse into the same one
Just isn’t supported by some frontends since its a frontend specific feature (mostly the apps)
Comments merging isn’t supported though but the post mirrors can be toggled between relatively easily
Thanks for merging in some of my changes <3
Code block support should be great for posts coming from programming.dev and the active user change should help communities feel a bit more alive and be more accurate to actual activity