Uncategorised decision
São Miguel Bus
A single developer can build and operate a minimal ad-slot booking site for local ads in about a week; the product's value is primarily distribution and brand, not technical moat.
Visit website↗Built by Sousa, who ships 5 products in this index
$5/mo
$60/yr
Read off the official pricing page.
$50one-off30 h to build
$15/mo3 h/mo upkeep
On cash alone, building overtakes the subscription at 4 seats.
No open-source build does this yet
Nothing published replaces this one, so a replacement starts from an empty file. Here is what it would have to cover.
What a replacement has to do
- Users reserve an ad slot via a web form → payment is collected → ad assets and metadata are stored → admin schedules and approves slots → API serves active ads to the app
What it still won’t have
- Existing audience / distribution and brand recognition
- Built-in users and any app-level ad placements
- Polished design, ongoing customer support and marketing
- Any bespoke integrations the vendor may have with local payment or accounting systems
What remains hard
- Product polish and ongoing maintenance
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 4 seats.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal ad-slot booking web app using Django, PostgreSQL, Celery, and an S3-compatible object store (DigitalOcean Spaces or AWS S3). Core features in scope: (1) public booking form with image upload and text fields, (2) Stripe payment integration for single-slot purchases and receipt emails, (3) Postgres models for slots, bookings, advertisers and assets, (4) admin UI to approve/reject bookings and mark slots as active/inactive, (5) background image processing (resize/compress) via Celery, (6) authenticated REST endpoint returning active banners for the mobile app. Out of scope: native mobile client, multi-tenant billing, advanced analytics, and marketplace features. Deliver runnable Docker compose files, environment config, unit tests for models and API endpoints, basic end-to-end test for booking+payment flow, and error handling for uploads, payment failures, and background job errors.
How we checked
How the score was reached
- Build verdict base78
- Price verified on pricing page+3
- 3/3 assessment runs agreed+4
- Evidence score85
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 1
Every page the run actually retrieved.
- official pricingSão Miguel Bus - Anuncie / Preços
Integrity checks
What held up, and what did not.
