* fix(holdings): an outbound transfer must not clear a cost basis Found by Codex on #3154, reported after it merged. The migration cleared any calculated basis on a position that had ever been part of a Transfer, in either direction. The runtime does not: both `Holding#calculate_avg_cost` and the calculators drop `qty <= 0` rows before they look at the label, so only a transfer IN makes a position unknowable. Shares sent elsewhere say nothing about what the remaining ones cost. That figure came from real purchases and is correct, and the migration destroyed it — irreversibly, on a position the app still stands behind. The `EXISTS` clause gains the same `qty > 0` the runtime applies, and a test holds both directions down: a transfer in clears, a transfer out does not, and each asserts what the computed path says before running the migration so the two cannot drift apart again. On the old SQL the outbound case fails. Installs that already ran the previous version cannot have those figures restored. A connected account recomputes its basis when it next materializes; a manual or disconnected one will not, which is the case this migration was written for in the first place. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016GTNba5qE5NwzaHzbp27ye * test(holdings): reach the runtime through its public door Review on #3237. The test asserted the runtime precondition by sending to Holding's private calculate_avg_cost, which ties migration coverage to a model's internals — the thing the repo's own guidance says not to do. `avg_cost` answers the same question in public; it only returned the stored figure first because this test had stored one. It now leaves the basis empty until after the precondition, so the read path falls through to the computation on its own, and each case stores the figure the migration is then asked to judge. The precondition stays rather than moving to the holding suite, because it is the point: the migration and the runtime have to agree about which positions are unknowable, and the bug was that they did not. A test on either side alone would not fail if they drifted apart again. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016GTNba5qE5NwzaHzbp27ye --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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Sure: The personal finance app for everyone
Get involved: Discord • Website • Issues
Important
This repository is a community fork of the now-abandoned Maybe Finance project.
Learn more in their final release doc.
Backstory
The Maybe Finance (archived/abandoned repo) team spent most of 2021–2022 building a full-featured personal finance and wealth management app. It even included an “Ask an Advisor” feature that connected users with a real CFP/CFA — all included with your subscription.
The business end of things didn't work out, and so they stopped developing the app in mid-2023.
After spending nearly $1 million on development (employees, contractors, data providers, infra, etc.), the team open-sourced the app. Their goal was to let users self-host it for free — and eventually launch a hosted version for a small fee.
They actually did launch that hosted version … briefly.
That also didn’t work out — at least not as a sustainable B2C business — so now here we are: hosting a community-maintained fork to keep the codebase alive and see where this can go next.
Join us!
Hosting Sure
Sure is a fully working personal finance app that can be self hosted with Docker. Sure can be accessed from a browser, the macOS desktop app, the mobile app, API clients, and LLM agents. See Sure Clients for an overview.
Forking and Attribution
This repo is a community fork of the archived Maybe Finance repo. You’re free to fork it under the AGPLv3 license — but we’d love it if you stuck around and contributed here instead.
To stay compliant and avoid trademark issues:
- Be sure to include the original AGPLv3 license and clearly state in your README that your fork is based on Maybe Finance but is not affiliated with or endorsed by Maybe Finance Inc.
- "Maybe" is a trademark of Maybe Finance Inc. and therefore, use of it is NOT allowed in forked repositories (or the logo)
Performance Issues
With data-heavy apps, inevitably, there are performance issues. We've set up a public dashboard showing the problematic requests seen on the demo site, along with the stacktraces to help debug them.
https://www.skylight.io/app/applications/s6PEZSKwcklL/recent/6h/endpoints
Any contributions that help improve performance are very much welcome.
Local Development Setup
If you are trying to self-host the app, read this guide to get started.
The instructions below are for developers to get started with contributing to the app.
Requirements
- See
.ruby-versionfile for required Ruby version - PostgreSQL >9.3 (latest stable version recommended)
- Redis > 5.4 (latest stable version recommended)
Getting Started
cd sure
cp .env.local.example .env.local
bin/setup
bin/dev
# Optionally, load demo data
rake demo_data:default
Visit http://localhost:3000 to view the app.
If you loaded the optional demo data, log in with these credentials:
- Email:
user@example.com - Password:
Password1!
For further instructions, see guides below.
Setup Guides
- Mac dev setup
- Linux dev setup
- Windows dev setup
- Dev containers - visit this guide
One-click Install
Managed OpenClaw for Sure Finances
License and Trademarks
Maybe and Sure are both distributed under an AGPLv3 license.
- "Maybe" is a trademark of Maybe Finance, Inc.
- "Sure" is not, and refers to this community fork.
