Web Development Estimation vs. Reality
Description
This is a screenshot of a tweet from the user 'Incognito' (@javascriptual). The tweet humorously summarizes web development in two steps. First, an optimistic developer decides: '1. Gonna make this registration and login page in 1 day so I never have to do it again in the future. I'll just copy and paste this code at work at all of my future jobs.' This is followed by the grim reality: '2. 14 days later. Fuck.' The joke perfectly captures the classic developer pitfall of drastically underestimating the complexity of seemingly simple tasks. Building a robust and secure authentication system involves far more than just two forms, including password hashing, session management, validation, password resets, and more. It's a commentary on poor project estimation, scope creep, and the painful realization that 'solved problems' are never as simple as they seem
Comments
9Comment deleted
Every senior dev has a graveyard of half-finished 'reusable auth solutions.' Each one is a monument to their former optimism and a testament to the seductive simplicity of JWTs
“Nothing ages a sprint estimate faster than a PM saying, ‘It’s just a reusable login form’ - aka two weeks of OAuth2 drift, SAML clock-skew bugs, MFA UX bikeshedding, and a security review that ends with you learning what NIST thinks about password paste events.”
The only thing more portable than authentication code is the technical debt it carries - both follow you to every job, but only one keeps growing compound interest in security vulnerabilities, edge cases, and compliance requirements you didn't know existed
Ah yes, the classic 'I'll build a reusable auth system in a day' delusion. Fourteen days later, you've implemented OAuth2, added JWT refresh token rotation, debated bcrypt vs Argon2, handled edge cases for password reset flows, implemented rate limiting, added CSRF protection, wrestled with session management across subdomains, and realized your 'simple' login page now has more dependencies than a microservices architecture. But hey, at least you'll never have to do it again... until the next job uses a different framework, different auth provider, different security requirements, and suddenly your 'portable' solution is about as reusable as a framework-specific component library. The real lesson? Authentication is never 'just a login page' - it's a rabbit hole that makes you question every life choice that led you to web development
Auth is where YAGNI goes to die; by day 14 you’ve accidentally implemented half an identity provider with CSRF defenses, refresh‑token rotation, email deliverability, and a GDPR erasure workflow you never scoped
Planning to reuse a login page at the next job? Two weeks later you’ve implemented OAuth/SAML/WebAuthn, appeased SameSite and CORS, warmed an email IP, and Legal confirms you can’t reuse a line of it
Auth boilerplate: survives one job hop, dies to the next PM's 'but we use Auth0 with custom JWT claims now.'
Hahah Comment deleted
That's what i will do Comment deleted