* fix(transactions): prevent duplicate creation on double-submit TransactionsController#create had no protection against a repeated form submission - a double-click, a browser retry, or two near-simultaneous requests could all create a separate identical transaction. Adds a per-form idempotency key (a UUID hidden field, generated fresh on page load) that reuses the existing entries(account_id, source, external_id) partial unique index, with a pre-check for the sequential case and a RecordNotUnique rescue as the authoritative backstop for genuine concurrent requests - the same pattern already used by mark_as_recurring and the public API's idempotency-key support. Fixes #3334. Co-Authored-By: Claude <noreply@anthropic.com> * fix(transactions): store the idempotency key in its own column, not external_id Codex review finding: reusing external_id/source for the web-form idempotency token made every manually-created transaction satisfy Entry#linked? (external_id.present?), since the form always supplies a key. That incorrectly made manual entries look provider-synced - disabling their date/nature/amount/currency fields in the editor (app/views/transactions/show.html.erb), and hiding them from future provider dedup matching (which filters to external_id: nil). Adds a dedicated entries.idempotency_key column with its own partial unique index scoped by account_id, used only for this de-duplication and with no meaning anywhere else in the app, so it can't collide with provider-linkage semantics. TransactionsController now tags/looks up entries by this column instead of source/external_id. Added a regression test asserting a transaction created via this path is not linked? and has no external_id/source set. Co-Authored-By: Claude <noreply@anthropic.com> * fix(migration): rebuild an invalid index left by an interrupted CONCURRENTLY build Codex review finding: index_exists? alone doesn't distinguish a valid index from an INVALID one left behind by an interrupted CREATE INDEX CONCURRENTLY (e.g. a deploy killed mid-build). A retry after such a failure would short-circuit on the early-return and record this migration as applied, while the actual uniqueness constraint stays missing/broken. Checks pg_index.indisvalid directly before deciding whether to skip the rebuild. Co-Authored-By: Claude <noreply@anthropic.com> * fix(transactions): rotate idempotency token on bfcache/Turbo restore, keep index removal concurrent Codex flagged that a page restored from the browser bfcache or Turbo's snapshot cache (back button, duplicated tab) keeps the already-consumed idempotency token in the hidden field. Submitting a different, edited transaction from that restored page would then match the old committed entry and silently redirect onto it instead of creating the new one. transaction_form_controller now rotates the token on turbo:before-cache so any later restore starts from a fresh, unconsumed value. Also address CodeRabbit's note that the migration's down block did a blocking DROP INDEX instead of DROP INDEX CONCURRENTLY. * fix(transactions): also rotate idempotency token on native bfcache restore CodeRabbit noted turbo:before-cache only covers Turbo's own snapshot cache, not the browser's native bfcache (e.g. a full navigation away and back, not through Turbo drive). Add a persisted-pageshow handler alongside it, and wire both through declarative data-action bindings on the form per this repo's Stimulus convention instead of manual addEventListener/connect/disconnect. * fix(transactions): fall back to manual UUID when crypto.randomUUID is unavailable crypto.randomUUID() requires a secure context, but this app's self-hosted mode is commonly reached over plain HTTP (LAN, reverse proxy without TLS). On such a deployment, calling it inside the cache-restore rotation handlers throws, leaving the stale, already-consumed idempotency token in the hidden field — a later edited resubmission would then silently match the old entry via find_duplicate_manual_entry and drop the user's edits. Build a v4 UUID manually from crypto.getRandomValues (which has no secure-context restriction) when randomUUID is missing. Also drops a stale comment reference to a MANUAL_FORM_SOURCE constant that doesn't exist anywhere in the codebase, and corrects a rescue comment that still described the old (account_id, source, external_id) index instead of the (account_id, idempotency_key) index actually backing this constraint. --------- Co-authored-by: Gerald <248542187+gfr-free@users.noreply.github.com> Co-authored-by: Claude <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.
