I'm not involved in building but I'm in the early stages of memecoin, I'm just a buyer and just joking around with some memecoins, like doge and shiba inu, at first it was just for fun, but there was a lot of enthusiasm from the community that made all this very big, how elo entered with tesla and also how Vitalik burned Shiba inu which made it very hype.
Various memecoin projects have their own categories such as NFTs, Metavers and the latest AI and many others, it's just that what makes them successful is depending on how the developer and a solid community, on the other hand even so memecoin depends on the hype built by the community for now, it will not be valuable if the hype is over.