Postingan

Show HN: Stateless compliance engine for banking and blockchain https://ift.tt/V2UsTFB

Show HN: Stateless compliance engine for banking and blockchain I’ve been working on a stateless compliance engine that validates IBAN/SWIFT, OFAC lists, ISO20022 (pain.001/pacs.008), and multi-chain data (ETH, BTC, XRPL, Polygon, Stellar, Hedera). Statelessness feels important in financial and blockchain workflows because no user data persists between requests, outputs are fully deterministic, and auditors can reproduce results without relying on stored state. Current progress: • Deterministic validators live and callable • On-chain checks working across 6 networks • ISO20022 structuring + downloadable PDFs • AWS backend deployed; Azure environment being added for multi-cloud isolation Looking for technical critiques or alternative patterns for building stateless compliance systems. https://ift.tt/1jRVpfK December 7, 2025 at 01:40AM

Show HN: SFX – A language where 0.1 and 0.2 = 0.3 and Context is first-class https://ift.tt/6azkUtH

Show HN: SFX – A language where 0.1 and 0.2 = 0.3 and Context is first-class I've spent the last few weeks building SFX in Rust. It's a programming language experiment focused on context-oriented programming with some unusual design choices. Reality check first: Solo project, 53 commits 1 GitHub star xD Zero users besides me No production usage Documentation is aspirational Many stdlib modules are minimal stubs What actually works: Basic interpreter (tree-walker) Arbitrary precision decimals (0.1 + 0.2 = 0.3) 1-based indexing (controversial, I know) Context/Situation system (the main idea) Some file I/O and basic networking JIT hooks exist but optimization is minimal The Context idea (asking for feedback on this): Instead of checking if (user.isAdmin) everywhere, you define Situation: AdminMode that overrides methods: Concept: User To GetPermissions: Return "read" Situation: AdminMode Adjust User: To GetPermissions: Return "admin,write,delete" Story: Create ...

Show HN: HCB Mobile – financial app built by 17 y/o, processing $6M/month https://ift.tt/OCIvYTU

Show HN: HCB Mobile – financial app built by 17 y/o, processing $6M/month Hey everyone! I just built a mobile app using Expo (React Native) for a platform that moves $6M/month. It’s a neobank used by 6,500+ nonprofit organizations across the world. One of my biggest challenges, while juggling being a full-time student, was getting permission from Apple/Google to use advanced native features such as Tap to Pay (for in-person donations) and Push Provisioning (for adding your card to your digital wallet). It was months of back-and-forth emails, test case recordings, and also compliance checks. Even after securing Apple/Google’s permission, any minor fix required publishing a new build, which was time-consuming. After dealing with this for a while, I adopted the idea of “over the air updates” using Expo’s EAS update service. This allowed me to remotely trigger updates without needing a new app build. The 250 hours I spent building this app were an INSANE learning experience, but it was...

Show HN: SerpApi MCP Server https://ift.tt/1hb6lJW

Show HN: SerpApi MCP Server https://ift.tt/lfH3072 December 6, 2025 at 01:30AM

Show HN: Massage therapy meets online learning– an app to help maintain wellness https://ift.tt/gbRM1xB

Show HN: Massage therapy meets online learning– an app to help maintain wellness Hi HN, I'm Rosa, a massage therapist for over 30 years. I noticed my clients felt relaxed after a massage, but their stress and muscle tension always came back. A one-hour massage isn't always enough to combat a long workweek. I saw that people needed info on how to take care of their bodies between appointments, not just treatment. That's why we built MASSAGE BY ROSA – a wellness platform to meet this need. Here’s what we offer: It’s a two-part deal: -Massage Therapy: Hands-on therapy for pain relief – based on methods from South Florida. -Online Body Therapy Courses: This is what I want to share. I turned my knowledge into video courses teaching self-massage, workstation adjustments, and ways to release tension. It’s like having a therapist help you stay well. The Tech: We’re keeping it basic with a static site for course content and subscriptions, which lets us focus on making great video le...

Show HN: Claude-ping – a WhatsApp bridge for Claude Code https://ift.tt/RdABaIV

Show HN: Claude-ping – a WhatsApp bridge for Claude Code A built a small WhatsApp bridge to keep track of claude code projects as they run on my laptop. There is an experimental permission hook to allow proxying of permission requests via the WhatsApp bridge. All messages are sent via a personal channel. https://ift.tt/bMFWaT7 December 5, 2025 at 04:10AM

Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg https://ift.tt/HjWqfMk

Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg Side project: exploring storing and querying OpenTelemetry data with duckdb, open table formats, and cheap object storage with some rust glue code. Yesterday, AWS made this exact sort of data architecture lot easier with new CloudWatch features: https://ift.tt/iy4Y5M7... https://ift.tt/gXGDsMt December 5, 2025 at 03:42AM