BTC Opportunity Cost Calculator
Instantly see the true Bitcoin cost behind every spend.
BTC Opportunity Cost Calculator launched on September 23, 2025 with 4 votes. The site was still online in September 2026, 1 year on.
What it does
Turn every spend into BTC stacking. Instantly convert prices you see online to their Bitcoin value and project future growth based on your settings. Just highlight a price and discover the real cost of spending fiat versus holding digital gold. HODL smarter.
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Crypto Tracker2017 · chromewebstore.google.com · ▲125Never miss an opportunity to invest in bitcoins & ether
Quantifying opportunity cost with a deliberately "simple" web appFeb 2026 · shouldhavebought.com · ▲28Hi HN, A while ago I had a mildly depressing realization. Back in 2010, I had around $60k. Like a "responsible" person, I used it as a down payment on an apartment. Recently, out of curiosity, I calculated what would have happened if I had instead put that money into NVIDIA stock. I should probably add some context. For over 10 years I've worked as a developer on trading platforms and financial infrastructure. I made a rule for myself - never trade on the market. In 2015, when Bitcoin traded about 300 usd, my brother and I were talking about whether it was a bubble. He made a bold claim that…
BTC Value CalculatorApr 2026 · btcvaluecalculator.com · ▲2See what your Bitcoin can actually buy in the real world
Source: Product Hunt launch ↗
Launched alongside, September 2025
the whole month →
The site hit #1 on HN about a year ago. Got enough traffic that I turned it into a proper API. What's there: - REST API — 35k products, manually filterable by category, free key, 60 req/min - CLI — npx anycrap random -c food - faker.js plugin — bundled, no API call, works offline - HuggingFace dataset — full 35k rows for ML/training https://anycrap.shop/developers
AI · 2025 · anycrap.shop
I made a built-from scratch Wayland Compositor to display any GUI app* in the terminal! I think there is a lot of unexplored potential in custom Wayland compositors, a lot of really cool things you can embed existing applications into! So, I started with embedding apps into the terminal because that is the easiest input/output (output is just utf-8 and I use the great `chafa` library for that, and I just read from stdin for the input). If you have any other ideas for cool Wayland compositors, let me know. I purposedly wrote 80% the app in Typescript to appeal to the most developers and…
Dev tools · 2025 · github.com
- IR
Years ago I stumbled across a basic version of this concept and it stuck with me. I knew if I was ever going to take on such a project, it would need to be flawless, but without coding experience it was just another idea that would never happen. By the end of 2024, as AI coding tools exploded everywhere, I finally had a way to make it real. I started from zero knowledge and spent months collaborating with AI agents as a learning experience. Every pixel and every function went through me. The AI translated what I asked for into code, but every decision was human. I didn't use existing OS…
AI · 2025 · mitchivin.com
