Help people sign up and sign in
11 min read
How to Replace the Supabase URL in Google Sign-In
Replace the long Supabase sign-in address with your own domain without rebuilding a working Google sign-in flow.
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Start with what is not working.
Choose what is going wrong. Each guide helps you find the cause, fix it, or decide what to do next.
Search by problem
Try sign-in, publishing, payments, repeated instructions, or choosing an AI model.
10 guides
Get your app ready for real people
Find the gaps that can stop a real person from using your app.
6 guides
Help people sign up and sign in
Help people create an account, sign in, and get back in.
Help people sign up and sign in
7 min read
Should You Build Your Own Login or Use Managed Auth?
For most founder-built apps, use managed auth.
Read guideHelp people sign up and sign in
18 min read
How to Add Signup and Login to Your Vibe-Coded NextJS App
Have AI build signup and login first, connect Supabase afterward, and prove the real account flow works.
Read guide4 guides
Let customers pay for your app
Add payments, give customers the access they paid for, and let them manage their plan.
Let customers pay for your app
14 min read
Add Stripe Payments to Your Next.js and Supabase App
Have AI add Stripe Checkout, connect payment to the right account and verify the paid feature.
Read guideLet customers pay for your app
14 min read
Keep Paid Access Correct as Stripe Subscriptions Change
Have AI connect Stripe's subscription updates to the right account, paid features and access dates.
Read guideLet customers pay for your app
17 min read
Let Customers Manage and Cancel Their Stripe Subscription
Implement Stripe subscription cancellation in your app, with billing controls, clear end dates and useful optional retention offers.
Read guide21 guides
Get better at using AI
Choose what AI should do, then make the result easier to check, repeat, and trust.
5 guides
Run better AI workflows
Give each AI task the right shape, model, and amount of context.
Run better AI workflows
10 min read
What Should You Automate With AI? Start With the Workflow, Not the Model
Use the AI Workflow Fit Test to choose a product or operations workflow, draw the human boundary, and prove value with a small end-to-end MVP.
Read guideRun better AI workflows
11 min read
Stop Making GPT-5.6 Sol Do Everything
A practical guide for using GPT-5.6 Sol to plan work, assign tasks, and review the result without spending its attention on every mechanical step.
Read guideRun better AI workflows
8 min read
GPT-5.6 Sol First Impression: The Hype Actually Has Teeth
GPT-5.6 Sol feels surprisingly strong on first use. The catch is speed. The bigger story is that OpenAI finally has a serious answer to Fable 5.
Read guide16 guides
Build reliable AI systems
Make AI-assisted work easier to control, review, and trust.
Build reliable AI systems
16 min read
How to Stop AI Coding Tools From Using Stale Files and Settings
A plain guide to changing one shared setting for AI coding tools, catching stale copies, restoring the prior value, and checking what each tool used.
Read guideBuild reliable AI systems
17 min read
How to Stop AI Agents From Repeating the Same Mistake
A plain guide to turning one recurring AI failure into a tested, reviewable rule without claiming the model learned.
Read guideBuild reliable AI systems
16 min read
How to Switch AI Providers Without Rebuilding Your Workflow or Losing Control
A plain guide to switching AI providers without silently changing the job, dropping its controls, or hiding which path actually ran.
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