StackPrism
Starters and MVPs

Tech stack for a micro-SaaS (2026)

Website uptime and SSL monitor, designed by StackPrism from one sentence: 8 components, a reason for each, and the live checks that watch them.

The stack

  • Next.js
  • Inngest
  • Node.js
  • Supabase
  • Resend
  • Stripe
  • Clerk
  • Sentry
Micro-SaaSScheduled jobsSolo founderUpdated
The idea someone typed
“A micro-SaaS that checks a list of websites every few minutes and emails the owner when one goes down or its SSL certificate is about to expire. Solo founder, one paid plan, and a public status page for each customer.”

Their answers on the constraints step

Budget
Up to ~$50/month
Time to launch
Weeks
DevOps
No DevOps experience

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Start from this stack
goes down

Select a component to see what it does and what it connects to, or pick one above to see what breaks if it goes down. Pinch or use the buttons to zoom.

Why this stack

Inngest Functions do the core of the product: scheduled jobs that check each site, store the results in Supabase PostgreSQL and send an alert through Resend when a site goes down or a certificate is close to expiry. The Next.js app on Vercel is the marketing site and the dashboard, and it signs people in with Clerk. A small Node.js API, also on Vercel, owns the account data and the Stripe subscription. Everything is managed, so one founder with no DevOps experience can run it on a small budget.

Why each piece

All 8 components on the diagram: what each one does, what it talks to, and what stops if it goes down.

  1. Next.js App

    Runs on Vercel

    Marketing and dashboard. Calls Clerk (signs in), Node.js API and Sentry (errors).

    Nothing else on the diagram depends on it.

  2. Inngest Functions

    Runs on Vercel, in Backend Services

    Scheduled jobs. Calls Supabase PostgreSQL (stores), Sentry (errors) and Resend (emails).

    Nothing else on the diagram depends on it.

  3. Node.js API

    Runs on Vercel, in Backend Services

    App control plane. Calls Supabase PostgreSQL (writes), Sentry (errors), Resend (sends) and Stripe (billing). Called by Next.js App.

    If it goes down, 1 of 7 components stops working.

  4. Supabase PostgreSQL

    Product system of record. Called by Node.js API (writes) and Inngest Functions (stores).

    If it goes down, 3 of 7 components stop working.

  5. Resend

    In External Services

    Email delivery. Called by Node.js API (sends) and Inngest Functions (emails).

    If it goes down, 2 of 7 components degrade.

  6. Stripe

    In External Services

    Billing platform. Called by Node.js API (billing).

    If it goes down, 1 of 7 components degrades.

  7. Clerk

    In External Services

    Authentication service. Called by Next.js App (signs in).

    If it goes down, 1 of 7 components stops working.

  8. Sentry

    Error monitoring. Called by Node.js API (errors), Next.js App (errors) and Inngest Functions (errors).

    If it goes down, 3 of 7 components degrade.

When this stack fits

  • The product is a scheduled job plus a dashboard, and the job matters more than the UI.
  • You run it alone and want nothing to patch, scale or wake up for.
  • One paid plan through Stripe and transactional email are all the business needs.

When to pick something else

  • Checks must run from several regions to rule out false alarms: one scheduler can’t do that alone, so you’ll need workers in more than one region.
  • Checks every few seconds: cron schedules work in minutes, so you’d run a long-lived worker instead.

What you need to build this

8 components across 7 areas of the stack.

Build it with your AI agent

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Frontend1

  • Next.js App

    Marketing and dashboard

    npm install next

    Docs

Backend & APIs2

  • Node.js API

    App control plane

    Docs

  • Inngest Functions

    Scheduled jobs

Data1

  • Supabase PostgreSQL

    Product system of record

    npm install @supabase/supabase-js

    Docs

Auth1

  • Clerk

    Authentication service

    npm install @clerk/nextjs

    Docs

Payments1

  • Stripe

    Billing platform

    npm install stripe

    Docs

Email & messaging1

  • Resend

    Email delivery

Observability1

  • Sentry

    Error monitoring

    npm install @sentry/nextjs

    Docs

Install

npm install next @supabase/supabase-js @clerk/nextjs stripe @sentry/nextjs

SDKs only. Pick your own database driver or ORM.

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