Quittance-Labs

Quittance-Labs/Quittance0

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100 Open Issues Need Help Last updated: Jul 16, 2026

Open Issues Need Help

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Single-flight payment claim lock across manual verify and the Horizon monitor about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Verify cache invalidation so a later matching Horizon payment is not stuck rejected about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Hydrate payment-monitor watches from pending storage after process restart about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Match muxed (M...) destinations to invoice G... seller keys without false PAID about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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One cancel authorization path: wallet proof without header/query/body split about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Freighter mobile handoff: return to /pay/[id] with hash without losing verify context about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Seller-only payment_events feed for one invoice workspace about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Deterministic PDF proof: timezone, fonts, and byte-stable paid export about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Classify late settlement from Horizon close_time vs expiry and cancel about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Isolate in-flight pay and verify when Freighter switches accounts about 17 hours ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Verify multi-operation Stellar transactions by selecting the matching payment op 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Stroop-accurate amount round-trip from form through Horizon string to proof 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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USDC pay preflight: detect missing trustline before Freighter submit 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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SEP-0007 QR payload budget so mobile cameras can still decode pay URIs 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Unguessable stable public pay ids that survive restart without sequential leaks 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Pin Stellar network passphrase across QR, Freighter, Horizon, explorer, and proof 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Split public pay DTO from seller workspace so GET by id cannot leak client PII 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Idempotent invoice create so double-submit cannot mint two pay links 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Shared Horizon client with timeout, 429 backoff, and one budget for verify and monitor 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Stellar text-memo contract: 28-byte cap, charset, and reject hash/id memos 1 day ago
enhancement help wanted Maybe Rewarded GrantFox OSS spike
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Unified invoice DTO and OpenAPI-style contract published for FE and BE 5 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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MVP observability: structured events from create through proof download 5 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Pay page modular architecture with shared payment session state 6 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Production readiness: liveness vs readiness for MVP API deploy 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Payment monitor runtime: durable cursors, multi-invoice watch, and restart safety 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Seller dashboard data layer: scoped queries, stats, search, and empty states 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Proof delivery stack: canonical document, PDF export, mailto, and receipt UI 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Asset and amount subsystem: XLM and USDC create, display, QR, and verify 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Postgres-backed invoice repository with dual-run MVP compatibility 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Freighter disconnect during invoice create must not lose form state 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Add CI workflow for backend and frontend on pull requests 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Invoice detail page: pay link, status timeline, and seller actions 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Print and PDF proof output: regression tests for layout and fields 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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End-to-end smoke test for create, pay, and verify on testnet 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Hardened public API edge: rate limits, verify cache, body limits, and ceilings 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Pay page accessibility: async verify and status announcements 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Freighter transaction builder path for invoice payment with fee and memo safety 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Seller invoice workspace: detail, timeline, share, cancel, and proof actions 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Test harness and CI matrix for shared, backend, and frontend contracts 7 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Invoice lifecycle state machine across API, storage, and UI 8 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Rebuild payment verification as a multi-step pipeline with typed stages 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Wallet session service: single source of truth across create, pay, and dashboard 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Reject underpayments and document overpayment policy in verify 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Dashboard search and filters must stay wallet-scoped 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Align invoice create validation between frontend and API 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Deploy Quittance demo frontend and MVP API with working CORS 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Handle Freighter network mismatch on create and pay pages 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Surface Horizon outages gracefully on the pay page 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Include explorer link and tx hash in mailto proof and invoice emails 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Prevent cancel from racing an in-flight verified payment 9 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Add first-run dashboard empty state for sellers with no invoices 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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SEP-0007 payment URI and QR payload hardening 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Horizon payment stream failover and durable cursor for auto-PAID 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Automate testnet evidence pack for SCF reviewers 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Structured logging for the create → pay → verify → proof path 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Invoice expiry and late-payment policy when settlement is on-chain 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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MVP in-memory to Postgres cutover without breaking proof links 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Idempotent verify under concurrency, replay, and memo collision 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Canonical quittance proof schema for PDF and machine-readable export 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Shared invoice and verify contracts across frontend and backend 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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USDC trustline and path-payment verification edge cases 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Freighter deep-link and mobile pay feasibility for invoice pay links 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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Abuse controls for public pay and verify endpoints 10 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS
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feat(frontend): add wallet profile initials helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add Horizon transaction explorer link helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add proof export timestamp formatter 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add API error message mapper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add asset decimal lookup helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add Horizon account explorer link helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add human-readable invoice status labels 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add invoice amount input parser 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add shortened transaction hash formatter 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add Freighter install prompt message helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add pay page terminal state guard helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add wallet localStorage key helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add asset code normalizer for display 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add dashboard history sort key helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add pay page memo hint helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(backend): add QR payment payload formatter 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(backend): add monitor retry backoff helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(backend): add invoice memo prefix validator 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add payment monitor interval helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(backend): add request correlation id helper 17 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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Wire mailto send-invoice and email-proof across the full invoice loop 22 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS Third Campaign
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feat(backend): add pending invoice stats helper 22 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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Unified verification rejection codes and API error UX across frontend and backend 23 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add clipboard copy feedback helper 23 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add verification rejection label helper 23 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(backend): add verify amount tolerance helper 23 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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Freighter wallet session hardening and network sync across all gated surfaces 23 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS Third Campaign
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feat(backend): add memory invoice public id helper 23 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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Align Postgres invoice persistence with MVP memory storage model 23 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS Third Campaign
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Seller invoice actions: cancel, resend link, and detail management end-to-end 24 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS Third Campaign
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Consolidate Horizon account, asset, and payment reads in stellar service layer 24 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add invoice detail share path helper 24 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add Stellar network display name helper 24 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add invoice card expiry summary helper 24 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add landing page feature bullet helper 24 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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feat(frontend): add dashboard empty-state message helper 24 days ago
help wanted good first issue Maybe Rewarded GrantFox OSS Third Campaign
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Accessibility pass: focus management, labels, and async results on core pages 24 days ago
enhancement help wanted Maybe Rewarded GrantFox OSS Third Campaign
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