Ideas & builds

Practical use cases and small business ideas, each with tools that fit.

Use case

Turn customer requests into pull requests

Send support tickets or feature requests to a coding agent (Codex, Claude Code, Cursor background agents) that opens a draft PR. A human reviews and merges. The Vercel story in the feed reports features shipping in about two hours with this setup.

Tools: Claude Code, OpenAI Codex, Cursor

Business idea

Niche AI tool directory

Pick one audience (real estate agents, teachers, podcasters) and rank the AI tools that fit their jobs, with honest verdicts. Earn from clearly labeled featured listings and a weekly email digest sponsor.

Tools: v0, Supabase, Resend

Business idea

Local-business explainer videos

Offer short explainer or promo videos for local shops using a prompt-to-video tool plus your own script review. Charge per video and deliver a captioned vertical cut for social.

Tools: Synthesia, CapCut, ElevenLabs

Use case

Weekly 'what changed' digest for a team

Use an AI assistant with web or X access to collect the week's tool updates relevant to your stack, then summarize them in five bullets for your team channel.

Tools: Grok, Perplexity

Use case

Private document Q&A

Load contracts, manuals or course notes into a source-grounded notebook, or a local model if the data is sensitive, and ask questions with answers tied to the source.

Tools: NotebookLM, Ollama, LM Studio

Business idea

Micro-SaaS from a spreadsheet

Find a spreadsheet people email around, such as inventory, schedules or quotes. Rebuild it as a simple web app with logins in an AI app builder, then charge a small monthly fee.

Tools: Lovable, Replit, Supabase

Use case

High-volume cheap classification

Route support emails, tag leads or pull fields from invoices with a small, fast model like Claude Haiku 5.5. Send only the hard cases to a bigger model.

Tools: Claude Haiku 5.5, OpenRouter

Use case

Podcast to clips pipeline

Record once, cut filler words in a transcript editor, then use auto-captions to make three or four vertical clips per episode.

Tools: Descript, CapCut

Business idea

Ship a ChatGPT plugin for a weekly chore people already Google

Build a small ChatGPT plugin for a job people already do by hand every week (PDF to Excel, invoice generator, weekly client reports). Write the listing in the exact phrases people type into ChatGPT, ship a few variants, and double down on whichever gets recommended. Source: @gregisenberg says plugins now show up mid-conversation while many slots are still empty.

Tools: ChatGPT

Business idea

A compliance checklist for vibe-coded apps before first payment

A simple paid or free checklist (or done-with-you review) covering open databases, privacy policies, COPPA, session replay, health pixels and email unsubscribe rules for apps built in a weekend with AI. Source: @LimestoneHQ's legal-traps thread.

Tools: Stripe, Supabase