The catalog/Collections/Weekend builds

Weekend builds startup ideas,
scored before you build

The ideas scored most buildable for one person: difficulty 2 of 5, a real two-week build with a coding agent, not a badge for a toy.

97ideas in this cut
74rated GO
76average UIQ
87highest here

Top ten by UIQ

  1. 1ExpectaProduct safety, scannedHealth tech87GO
  2. 2DunnableRecover the failed cardSaaS84GO
  3. 3HandoffApprove what the agent is about to doAgentic commerce83GO
  4. 4PromptleakFind the secret in the promptDev tools83GO
  5. 5DuesoonChase invoices without the awkwardnessFintech82GO
  6. 6SourcecheckThe citation that does not existResearch82GO
  7. 7TenantpaperThe compliance file that is always readyProperty82GO
  8. 8CashrunwayThe week you run outFintech81GO
  9. 9InboxlyInbox to actionsSaaS80GO
  10. 10PromptlockThe prompt that changed in productionDev tools80GO

All 97

87GO
Health tech

Expecta

Product safety, scanned

Next.js + Supabase · 2/5
84GO
SaaS

Dunnable

Recover the failed card

Next.js + Postgres · 2/5
83GO
Agentic commerce

Handoff

Approve what the agent is about to do

Next.js + Supabase · 2/5
83GO
Dev tools

Promptleak

Find the secret in the prompt

Next.js + Postgres · 2/5
82GO
Fintech

Duesoon

Chase invoices without the awkwardness

Next.js + Postgres · 2/5
82GO
Research

Sourcecheck

The citation that does not exist

Next.js + Postgres · 2/5
82GO
Property

Tenantpaper

The compliance file that is always ready

Next.js + Supabase · 2/5
81GO
Fintech

Cashrunway

The week you run out

Next.js + Postgres · 2/5
80GO
SaaS

Inboxly

Inbox to actions

Next.js + Supabase · 2/5
80GO
Dev tools

Promptlock

The prompt that changed in production

Next.js + Postgres · 2/5
80GO
Fintech

Quotesure

Quotes that do not undercut you

Next.js + Postgres · 2/5
80GO
Fintech

Taxbucket

The tax money you already spent

Next.js + Postgres · 2/5
79GO
SaaS

Churnwhy

The reason behind the cancel

Next.js + Postgres · 2/5
79GO
AI governance

Clauseclock

Your AI Act deadlines, dated

Next.js + Supabase · 2/5
79GO
Research

Donorpulse

The donor about to lapse

Next.js + Postgres · 2/5
79GO
SaaS

Proofly

Testimonials on autopilot

Next.js + Supabase · 2/5
79GO
SaaS

Scopecreep

That was not in the quote

Next.js + Postgres · 2/5
79GO
Local services

Shiftswap

Cover the shift without the manager

Expo + Supabase · 2/5
79GO
Property

Sittingpretty

Deposits that end the argument

Next.js + R2 · 2/5
79GO
Property

Snagpoint

The snag list that closes

Expo + Supabase · 2/5
78GO
Local services

Chairgap

Fill tonight's empty slot

Next.js + Supabase · 2/5
78GO
SaaS

Cliffwatch

The free tier that eats you

Next.js + Postgres · 2/5
78GO
AI governance

Dsartrack

Answer the data request in time

Next.js + Postgres · 2/5
78GO
SaaS

Esgdrop

The supplier questionnaire, answered once

Next.js + Postgres · 2/5
78GO
SaaS

Kudosloop

Ask when they are happiest

Next.js + Supabase · 2/5
78GO
Sports

Leaguenight

Run the league from your phone

Expo + Supabase · 2/5
78GO
Health tech

Medstock

The drug that expired on the shelf

Next.js + Supabase · 2/5
78GO
Travel

Passline

Know your visa dates before they know you

Next.js + Postgres · 2/5
78GO
Dev tools

Replaycost

What that agent run cost you

Next.js + Postgres · 2/5
78GO
Manufacturing

Safetick

The check that proves it happened

Expo + Supabase · 2/5
78GO
Fintech

Vatline

The threshold you are about to cross

Next.js + Postgres · 2/5
77GO
Research

Archiveproof

The page that changed under you

Next.js + R2 · 2/5
77GO
Fintech

Bookgap

The receipt your accountant will ask for

Expo + Supabase · 2/5
77GO
AI governance

Modelcard

The documentation the audit will ask for

Next.js + Postgres · 2/5
77GO
SaaS

Onboardgap

Where new users quietly give up

Next.js + Postgres · 2/5
77GO
SaaS

Quotewin

Which quotes you actually win

Next.js + Postgres · 2/5
77GO
SaaS

Retainerwatch

The retainer you are burning through

Next.js + Postgres · 2/5
77GO
Dev tools

Schemadrift

The API changed and nobody said

Next.js + Postgres · 2/5
77GO
Ecommerce

Shelfwatch

The listing that went dark

Next.js + Postgres · 2/5
77GO
Research

Shipbench

How long that build really takes

Next.js + Postgres · 2/5
77GO
Sports

Slotpool

The pitch that sat empty

Next.js + Supabase · 2/5
77GO
Ecommerce

Tablecount

Stock counts that are not fiction

Expo + Supabase · 2/5
77GO
Manufacturing

Toolcal

The gauge that is out of calibration

Next.js + Postgres · 2/5
76GO
Local services

Bookedout

Say no to the wrong job faster

Next.js + Supabase · 2/5
76GO
Accessibility

Captionfix

Captions that are actually right

Next.js + R2 · 2/5
76GO
Education

Coursegap

The student who stopped

Next.js + Postgres · 2/5
76GO
Health tech

Cyclelog

Symptoms your doctor will read

Expo + Supabase · 2/5
76GO
Dev tools

Docdrift

The docs lie and everyone knows

Next.js + Postgres · 2/5
76GO
Local services

Fitcheck

The client who stopped coming

Next.js + Supabase · 2/5
76GO
Local services

Gearreturn

Rental kit that comes back

Next.js + Supabase · 2/5
76GO
SaaS

Handoverpack

The client files they cannot chase you for

Next.js + R2 · 2/5
76GO
Sports

Kitfit

The membership that lapsed quietly

Next.js + Postgres · 2/5
76GO
Creator

Podcue

The sponsor read that ran

Next.js + Postgres · 2/5
76GO
Insurance

Premiumdrift

Your renewal quietly went up

Next.js + Postgres · 2/5
76GO
SaaS

Seatdrift

Stop paying for people who left

Next.js + Postgres · 2/5
76GO
Dev tools

Signalfade

The alert everyone stopped reading

Next.js + Postgres · 2/5
76GO
Education

Slotcast

The class that fills itself

Next.js + Supabase · 2/5
76GO
Dev tools

Standby

Status pages, instant

Next.js + Supabase · 2/5
76GO
Dev tools

Statuscall

Your vendors are down, not you

Cloudflare Workers + D1 · 2/5
76GO
AI governance

Subprocess

The subprocessor list that stays true

Next.js + Postgres · 2/5
76GO
Hospitality

Tipsplit

Tips split without a row

Next.js + Postgres · 2/5
76GO
AI governance

Vendorwatch

Your AI vendor just changed the terms

Next.js + Postgres · 2/5
76GO
Manufacturing

Warrantyline

Still under warranty, actually

Next.js + Postgres · 2/5
75GO
Health tech

Carerota

The family rota that is not one person

Next.js + Supabase · 2/5
75GO
Creator

Clipproof

Your clips, declared

Next.js + R2 · 2/5
75GO
Logistics

Depotgate

The delivery nobody signed for

Expo + Supabase · 2/5
75GO
Dev tools

Envdiff

It works on staging

Next.js + Postgres · 2/5
75GO
Pets

Kennelbook

The vaccination record you can trust

Next.js + Supabase · 2/5
75GO
Manufacturing

Kitcheck

The gear that walked off site

Expo + Supabase · 2/5
75GO
Automotive

Motmind

The failure you can fix first

Next.js + Postgres · 2/5
75GO
Dev tools

Oncallfair

The rota that does not burn one person

Next.js + Postgres · 2/5
75GO
SaaS

Splitfee

Who gets what on this project

Next.js + Postgres · 2/5
75GO
Property

Viewingslot

Stop the viewing phone-tag

Next.js + Supabase · 2/5
75GO
Hospitality

Waitproof

The queue that texts you

Next.js + Supabase · 2/5
74CAUTION
Ecommerce

Bundlemath

The bundle that loses money

Next.js + Postgres · 2/5
74CAUTION
Dev tools

Flaggone

Delete the flag you forgot

Next.js + Postgres · 2/5
74CAUTION
Fintech

Latefee

The late fee you never charge

Next.js + Postgres · 2/5
74CAUTION
Automotive

Leaseback

The lease damage charge you can dispute

Expo + Supabase · 2/5
74CAUTION
Ecommerce

Priceproof

They raised the price quietly

Next.js + Postgres · 2/5
74CAUTION
Sports

Refassign

The official who did not show

Next.js + Supabase · 2/5
74CAUTION
Recruiting

Reftrack

The reference nobody chased

Next.js + Supabase · 2/5
74CAUTION
Travel

Seatfill

The empty seat on the coach

Next.js + Postgres · 2/5
74CAUTION
Education

Tuitionfill

The tutor slot that went empty

Next.js + Supabase · 2/5
73CAUTION
Education

Cohortpay

Course refunds without the drama

Next.js + Postgres · 2/5
73CAUTION
SaaS

Daylight

The report the board reads

Next.js + Postgres · 2/5
73CAUTION
Pets

Groomgap

The dog that is due

Next.js + Supabase · 2/5
73CAUTION
Education

Libhold

The equipment loan that came back

Next.js + Supabase · 2/5
73CAUTION
Local services

Quiethours

Rotas that respect real life

Next.js + Supabase · 2/5
73CAUTION
Music

Soundcheck

The venue tech pack, current

Next.js + R2 · 2/5
73CAUTION
Research

Volshift

The volunteer who drifted off

Next.js + Supabase · 2/5
72CAUTION
SaaS

Noticeboard

The policy everyone actually read

Next.js + Postgres · 2/5
72CAUTION
Music

Setlist

The gig admin nobody does

Next.js + Supabase · 2/5
71CAUTION
Education

Gradeflow

Marking that runs to a rubric

Next.js + Postgres · 2/5
70CAUTION
Agriculture

Hivecount

The inspection you meant to log

Expo + Supabase · 2/5
69CAUTION
SaaS

Standupless

The update nobody has to attend

Next.js + Supabase · 2/5
68CAUTION
Fintech

Rentsplit

Bills between housemates, settled

Expo + Supabase · 2/5
67CAUTION
SaaS

Quiettime

Meetings your calendar cannot hold

Next.js + Supabase · 2/5

Other ways to cut it

Frequently asked

What makes an idea one of the weekend builds?

The ideas scored most buildable for one person: difficulty 2 of 5, a real two-week build with a coding agent, not a badge for a toy.

How are these scored?

Against the same eight-signal UIQ rubric as every idea in the catalog, with demand and feasibility weighted most. Anything under 55 never publishes, so the whole catalog has already cleared the bar.

Can I build one solo?

That is what the codeability and feasibility sub-scores measure, shown on every idea. Most are a real build for one person working with a coding agent.

Can I see one in full before paying?

Yes. The Idea of the Week is unlocked completely and free, with no account needed at all.

Is the ranking just the total score?

Yes, the top ten is ordered by UIQ alone. The total is a fair first cut, but the sub-scores are where the real decision lives, so compare two before you commit an evening.

Does this list change?

It is computed from the catalog every time the site builds, never hand-kept, so it cannot drift or recommend an idea that was pulled. New ideas join the moment they qualify.

Start free

Pick one from the weekend builds and start

The Idea of the Week is fully unlocked, no account needed. Sign in when you want to keep your build progress.

Free forever tier · no card required