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⚡ AI Lessons

Dev.to · zerodrop
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
Claude Code shipped a sandbox. Here's what it protects — and what it doesn't.
Bash-only scope, reads wider than writes, a permissioned escape hatch, fail-open, and no native Windows — plus the distinction that matters: containment isn't c

Dev.to · zerodrop
🔧 Backend Engineering
⚡ AI Lesson
1mo ago
RSpec Email Testing Without MailCatcher
ActionMailer's deliveries array tests that you called the mailer. MailCatcher tests real email but needs a daemon. Here's how to test signup, OTP, and magic-lin

Dev.to · zerodrop
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
How to let AI agents verify email signups
An AI coding agent can scaffold a signup flow in about ninety seconds. Route, form, validation, a...

Dev.to · zerodrop
🤖 AI Agents & Automation
⚡ AI Lesson
1mo ago
I asked an AI agent to delete a folder my tool was guarding. Here's everything that went wrong.
I build Termaxa, a small Rust CLI that gates the shell commands AI coding agents run: it previews...

Dev.to · zerodrop
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
Testing NextAuth Magic Links in Playwright Without a Local SMTP Server
The most common approach to testing NextAuth magic links in Playwright looks like this: import...

Dev.to · zerodrop
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
How to Test Clerk Email Verification in Playwright Without Hitting the 100 Email Limit
Clerk's development mode limits you to 100 emails per calendar month. Once you hit that limit, OTP...

Dev.to · zerodrop
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
How to Test Email Verification Flows in Python with pytest
Testing email verification in Python is one of those problems that looks simple until you actually...

Dev.to · zerodrop
🌐 Frontend Engineering
⚡ AI Lesson
2mo ago
OTP Verification in Playwright Without Regex
Most guides to OTP testing in Playwright include a function that looks something like...

Dev.to · zerodrop
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
How to Test Magic Link Authentication in Playwright (No API Key, No Regex)
Magic links are becoming the default authentication pattern for modern SaaS apps. Passwordless login,...

Dev.to · zerodrop
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
How to E2E Test Supabase Auth Email Flows in Playwright (No Docker, No InBucket)
If you've tried to test Supabase authentication flows end-to-end in a CI pipeline, you've probably...

Dev.to · zerodrop
💻 AI-Assisted Coding
⚡ AI Lesson
2mo ago
Claude Code Built My SaaS But Couldn't Verify Signup Emails
I've been building with Claude Code for the past few months. It's genuinely changed how I work — I...

Dev.to · zerodrop
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
Testing Email Flows in Cypress Without a Mail Server
Cypress is one of the most popular E2E testing frameworks for web applications. But testing email...

Dev.to · zerodrop
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
How to E2E Test Amazon SES Email Workflows in Playwright
Amazon SES is the go-to transactional email service for teams already in the AWS ecosystem. But...

Dev.to · zerodrop
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
How to E2E Test Mailgun Email Workflows in Playwright
Mailgun is a popular transactional email API trusted by developers for reliable delivery. But how do...

Dev.to · zerodrop
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
How to Test Nodemailer Email Flows in Playwright
Nodemailer is the most widely used email library in Node.js. If your Express, Next.js, or NestJS app...

Dev.to · zerodrop
🌐 Frontend Engineering
2mo ago
Testing Password Reset Flows End-to-End in Next.js with Playwright
Password reset is one of the most critical flows in any application. It's also one of the most...

Dev.to · zerodrop
📣 Digital Marketing & Growth
⚡ AI Lesson
2mo ago
How to E2E Test SendPigeon Email Workflows in Playwright
When you integrate SendPigeon into your app, you get three stages of email testing. Each stage solves...

Dev.to · zerodrop
🌐 Frontend Engineering
⚡ AI Lesson
2mo ago
OTP Verification in Playwright Without Regex
Every developer who has written a Playwright test for OTP verification has written this...

Dev.to · zerodrop
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
I Built a Developer Tool in 2 Days. Distribution Took 2 Weeks and Still Counting.
This isn't a success story. It's an honest account of what it actually feels like to build something...

Dev.to · zerodrop
🔧 Backend Engineering
⚡ AI Lesson
2mo ago
Running 100 Playwright Tests in Parallel Without Inbox Collisions
If you've ever tried to run a large Playwright test suite in parallel — the kind that tests email...

Dev.to · zerodrop
☁️ DevOps & Cloud
⚡ AI Lesson
2mo ago
MailHog Alternatives for CI Pipelines in 2026
MailHog was the go-to fake SMTP server for years. It's simple, free, and gets the job done locally....

Dev.to · zerodrop
📣 Digital Marketing & Growth
⚡ AI Lesson
3mo ago
How to test email verification flows in Playwright (Mailpit, MailHog, and a no-setup alternative)
If you've ever tried to write a Playwright test that covers a full sign-up → email verification →...
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