if your saas uses magic link signup, check this right now: your link in the email shouldn't call the verify api directly. there should be an interstitial confirm page instead. here's why: corporate email scanners (microsoft safe links, mimecast, etc) pre-fetch every url in incoming mail. they burn your single-use token before the user even clicks. then user opens the email, sees "token invalid", retry 2 times, gives up. cost us two F500 leads before we caught it. fix: email points to a page with a "sign me in" button → POST from that button hits your verify api.

One company manages 6,000 AWS accounts with three people 😅 Not 60. Not 600. Six thousand! 🔥 Each customer gets their own isolated account with the full microservice stack → 40 services, ~120,000 deployed instances, roughly 1 million Lambda functions across the fleet.

People who keep saying AI is going to replace developers… have they actually worked inside a large enterprise? A LOT of companies don’t even allow developers to install third party packages. I regularly talk to friends working at Fortune 500 companies. Some of them aren’t even allowed to install NumPy or Matplotlib without going through layers of approval. In some environments, even access to LLM tools is restricted or sandboxed behind heavy compliance controls. This isn’t a “move fast and ship AI agents” world. It’s a world of security reviews. Procurement. Legal approvals. Risk assessments. I remember years ago it took two weeks just to get approval to use jQuery. Two weeks. For jQuery. Now imagine trying to integrate external AI services, autonomous agents, or experimental frameworks into that kind of environment. AI is powerful. It’s transformative. But enterprise reality moves at a very different speed.