# Keep a side-project idea backlog

The app idea you had on the train, written down with the problem it solves and how long it might take. Months later, ask your assistant which ideas fit a free weekend.

## An example

**You:** Idea: a small app that tells me which train car to board so I end up by the exit. Would need station layouts. Maybe a weekend for a first version.

**ADoor:** Added 1 entry to Ideas

**Ideas**

| Idea | Effort | Status | Added |
| --- | --- | --- | --- |
| Train car by the exit | A weekend | Idea | Oct 20 |

## What you can ask later

- “Which ideas could I build in a weekend?”
- “What did I write about the train app?”
- “Which ideas have I had more than once?”
- “Move the train app to In progress.”

## Who can see what

- **Only you** by default.
- **A friend you build with** can read and add to the ideas you mark as shared.
- **Cursor** can read the idea and its notes when you start building, and add progress notes.

## How it compares with a notes app

A notes app is better for quick sketches and long free-form thinking.

Once you have dozens of ideas, ADoor helps. Each one has an effort, a status and notes, so your assistant can sort and compare them, and Cursor can read the idea when you sit down to build it.

## How to start

1. Sign in to ADoor and connect an assistant like ChatGPT. Claude, Grok and Cursor connect the same way, through MCP.
2. Tell it: “Keep my side-project ideas: idea, problem it solves, effort, status, date added and notes.”
3. When you start one, connect Cursor so it can read the idea and add progress notes.

[Get your account](https://app.adoor.halmoslabs.com/signup)

## Questions people ask

### Can Cursor read the ideas?

Yes. Cursor connects to ADoor through MCP, with the access you give it.

### Can I attach sketches?

ADoor doesn’t store files. Save a link to where the sketch lives.

### Do I have to pay?

Not on the free plan, which holds 3 tables and 100 rows. Pro is $10 a month per workspace, with 1 GB of storage and no per-GB charges.

### Does it work with Claude and Grok too?

Yes. ChatGPT, Claude, Grok and Cursor all connect through MCP with a sign-in, and each gets its own access that you can narrow or remove later.

## Related

- [Track what you’re learning](/use/learning-notes/)
- [Plan an open-source project roadmap](/use/open-source-roadmap/)
- [Back an internal tool](/use/internal-tool-backend/)
- [ADoor vs Notion](/compare/adoor-vs-notion/)
- [ADoor vs Obsidian](/compare/adoor-vs-obsidian/)
- [All use cases](/use/)

Updated October 20, 2026.