``` git commit -m 'yolo yeeehaa' [main 57c8dde] yolo yeeehaa 205 files changed, 14670 insertions(+), 2457 deletions(-) ```

LividLess is being acquired by Meta, and they will stop selling the Pendant—the hardware that records your audio and sends summaries throughout the day. They plan to support existing devices for a year and then retire the product. I’m getting rid of mine and deleting all my data, because there is no scenario where I allow Meta access to my conversations. I’m glad the team reached this milestone, but as a customer, I’m deeply disappointed.

Tuned.ws is a desktop app and a web app, I’m building to turn raw artist data into an “AI growth strategist” for musicians.

Instead of logging into multiple dashboards and spreadsheets, you export your data (Spotify for Artists, Apple Music, etc.), drop the CSVs into Tuned.ws, and then chat with an AI that actually understands your numbers. It can surface trends, suggest release/marketing moves, and explain why certain tracks or cities are performing the way they are.

Demo video: https://tuned.ws/demo

Right now Tuned.ws can: • Ingest platform CSV exports (starting with Spotify + Apple Music) • Auto-build a dashboard with top tracks, cities, and trends • Let you ask free-form questions about your data in a chat (“Why did this track spike?”, “Where should I focus ad spend?”) • Generate strategy-style insights in plain language for non-technical artists/managers

It’s still in beta and focused on solo artists/indie teams. I’d love feedback from HN on: • Where the insights feel useful vs. generic • What data sources you’d expect next (TikTok, IG, YouTube, radio, etc.) • Any obvious “this will never scale because X” concerns

Happy to answer technical/product questions in the comments.

Hi HN! I built Tranzia because I always wondered: “What’s the safest route to take at night?”

Tranzia scores routes (0–10) using official crime data, nighttime visibility, walking exposure, station safety history, and anonymized user feedback. It currently supports NYC and London.

Under the hood it uses H3 spatial indexing, percentile-normalized crime distributions per city, and a transparent scoring formula (55% crime, 20% time of day, 15% walking, 10% feedback). Every route includes a breakdown of why it scored that way.

Would love feedback on the model, data normalization, and extending this to more cities. Live demo here.

Hi HN! I built AcquireMock – a self-hosted mock payment gateway for developers who need to test payment integrations without dealing with sandbox APIs or API keys.

The problem: When building e-commerce features, you often need to test payment flows. Sandbox environments from providers like Stripe work great, but they require API keys, have rate limits, and don't work offline. For educational projects, MVPs, or demos, this is overkill.

AcquireMock simulates a full payment flow including: - Beautiful checkout UI (dark mode, 4 languages) - OTP verification via email (optional) - HMAC-signed webhooks with auto-retry - Card storage for returning customers - Docker deployment in one command

Tech stack: FastAPI, PostgreSQL, SQLModel, Jinja2. Everything runs locally with docker-compose up.

Use cases: - Testing payment flows in development - Learning how payment gateways work - Building MVPs without PSP setup - Creating payment demos for clients

The test card is 4444 4444 4444 4444 (any CVV/expiry works). There's an interactive test page at localhost:8000/test.

This is explicitly NOT for production – it's a mock for testing only. When you're ready for production, you'd swap it out for a real PSP like Stripe or Fondy.

I'd love feedback on the approach and feature requests! The repo includes full API docs and examples of webhook verification.

GitHub: https://github.com/illusiOxd/acquiremock

I want to measure the circumference of the Earth by looking out of my bedroom window without having to ask for anyones help.

As much as I have tried, I cannot realise the circumference without first measuring a distance. Please tell me if this is not the case somehow.

If it is not possible to know the explicit measured circumference, but I can know values such as orbital angles, I find that the reality of the circumference is in a superposition relative to myself, it has no actual meaning to me.

Without having used science to make measurements, I do not exist in a classical reality, I exist in a quantum one. How can I quantify how relativity applies to me without having derived any numbers (e.g. too busy playing computer games). Clearly it does apply, but the quantities are not measured.

If I do not exist in a classical reality because I never measured anything, I do not have to accept that knowing everything about the system around me results in a deterministic outcome, I can have confidence that a predetermined outcome does not apply. Potentially deterministic outcomes are decided by my decision to make measurements.

From my attempt to measure the circumference of the Earth from my bedroom I have concluded that Classical Physics is the result of Science (measurements) and not a fundamental truth about reality. I have determined that the outcome that becomes fixed via measurement is the result of my decision to make a measurement and from this I determine that I have free will.