I feel like I'm making a "Senior Engineer meme" out of myself by saying "it depends".

Remember that a custodial lightning service is a financial service. You should expect to treat it with the same type of diligence that you would treat building the backend of a bank. In all honesty, I would suggest not doing it unless you are very confident in multi-layered security models and also uptime resiliency (if your server goes down, do people lose access to their money?).

Since you are a capable frontend dev, I'd suggest taking a look at WebLN: https://www.webln.guide/introduction/readme - it will allow you to offload the lightning backend to services listed on https://www.webln.guide/ressources/webln-providers. That way you can facilitate payments without having to touch the backend stuff.