ELI5 / TLDR:

CLINK gives you a permanent Lightning payment code (noffer1...) that works like a Bitcoin address, but smarter.

Old way (LNURL, Lightning Addresses):
Requires a web server, domain, SSL, public IP — very complicated setup.

CLINK way:
Everything happens over normal Nostr DMs. Just share one static string. Wallets and websites use that to fetch invoices.

It also sends a payment receipt back so the website can react (success animation, unlock content, etc.) and you can attach extra data (SKU, order info, etc.).

Try it by pasting this:
noffer1qvqsyqjqvcurjdm9x5uxydrzvcer2wrp8q6x2ef58pnryv3c893ngen98qerwvmrxuunqde5vgcnvc35vg6nydpnxfjrgetzv4snwd3exsungwgprfmhxue69uhhxarjvee8jtnndphkx6ewdejhgam0wf4sqgrka4zlqr820wk9nkxsklfqfpy02vva0wtvzs8lkm7t424s5y75fc4vx4hj

... into https://pay.shockwallet.app

As a receiver, you can include that string in a web link: https://pay.shockwallet.app/?noffer=noffer1qvqsyqjqvcurjdm9x5uxydrzvcer2wrp8q6x2ef58pnryv3c893ngen98qerwvmrxuunqde5vgcnvc35vg6nydpnxfjrgetzv4snwd3exsungwgprfmhxue69uhhxarjvee8jtnndphkx6ewdejhgam0wf4sqgrka4zlqr820wk9nkxsklfqfpy02vva0wtvzs8lkm7t424s5y75fc4vx4hj

That's a fully static web site, and you'll get a success animation once paying the invoice. The node you're paying doesn't need any fancy networking setup.

Bolt12 achieves some of this static payment code stuff through Tor-like onion messages, which are therefore slow and unreliable. It's also not web friendly, making its utility limited. Some might even say that it's retarded.