General technical writing — architecture decisions, engineering problems, tools built to solve specific needs, and observations from running software in production.
Military Flight Tracker Live military aircraft on ADS-B — free, no sign-up. OPEN MILITARY FLIGHT TRACKER → Mil Flights — live board → What the feed looks like right now At the time of writing, 85 military-marked aircraft are broadcasting. The mix is telling about what military aviation actually does all day: 46 transports — […]
Chain Swap Monitor Live on-chain swaps and liquidity events — free. OPEN CHAIN SWAP MONITOR → Everything that happens on a DEX is public — but “public on-chain” and “actually watchable” are different things. This monitor turns the firehose of swap events into a readable board: what is being swapped, in which pools, in what […]
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European Power Prices Day-ahead electricity prices across Europe, live — free. OPEN EUROPEAN POWER PRICES → If your electricity tariff follows the spot market — or you simply want to understand why your bill looks the way it does — the number that matters is the day-ahead price for your bidding zone. It is published […]
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Sun Live Real-time solar imagery and flare activity — free. OPEN SUN LIVE → The Sun is the only star we can watch in detail — and it is worth watching, because it is not quiet. Filaments lift off, flares spike the X-ray flux in minutes, sunspot groups rotate into view and occasionally produce eruptions […]
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Exoplanet Explorer Thousands of confirmed exoplanets, searchable — free. OPEN EXOPLANET EXPLORER → In 1995 we knew of zero planets outside our solar system. Today the confirmed count is in the thousands — hot Jupiters hugging their stars, super-Earths, mini-Neptunes, a handful of rocky worlds in habitable zones. The data is public but the catalog […]
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People in Space Every human in orbit right now, live roster — free. OPEN PEOPLE IN SPACE → There is a number that changes quietly and means something: how many humans are off the planet right now. Usually it is around ten — a station crew here, a visiting mission there — and occasionally it […]
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Space Weather Live Solar wind, Kp index and aurora conditions, live — free. OPEN SPACE WEATHER LIVE → When the Sun burps, Earth notices about thirty minutes later. A coronal mass ejection or a fast solar wind stream compresses our magnetosphere, drives geomagnetic storms, pushes auroras toward the equator — and occasionally breaks things: GPS […]
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Asteroid Watch Every asteroid approaching Earth, live — free, no sign-up. OPEN ASTEROID WATCH → Every week, several asteroids pass closer to Earth than the Moon. Almost all of them are harmless — but “almost all” is exactly why tracking them is interesting. This board pulls the near-Earth object feed and lays out what is […]
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Live Satellite Map Real positions of thousands of satellites, live — free, no sign-up. OPEN LIVE SATELLITE MAP → There are more than ten thousand tracked objects orbiting Earth right now — Starlink trains, the ISS, weather satellites, debris from decades of launches. Most people never see them because the data lives in TLE catalogs […]
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arXiv Daily Digest Fresh CS/AI papers across eight categories, daily — free. OPEN ARXIV DAILY DIGEST → arXiv Digest — today’s papers → Today’s firehose, measured At the time of writing, 1,110 unique papers were submitted today across the eight categories we watch — AI, NLP, vision, ML, security, software engineering, distributed systems and robotics. […]
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Air Quality Slovakia Every monitoring station in Slovakia, live — free, no sign-up. OPEN AIR QUALITY SLOVAKIA → Air Quality Slovakia — live board → What the network says right now At the time of writing, 52 stations are reporting hourly readings. Today’s air happens to be good almost everywhere — 41 stations sit in […]
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Rocket Launch Tracker Every upcoming orbital launch, live countdowns — free, no sign-up. OPEN ROCKET LAUNCH TRACKER → Somewhere in the world, a rocket lifts off roughly every other day — but launch schedules are scattered across agency feeds, slip constantly, and most trackers either lag or bury the data under ads. So I added […]
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Crypto Perp Board Live funding rates and open interest — free, no sign-up. OPEN CRYPTO PERP BOARD → Perpetual futures never expire — so exchanges pin them to spot with a small recurring payment called the funding rate. When funding is positive, longs pay shorts; when negative, shorts pay longs. It is one of the […]
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CVE Watch Vulnerabilities actually being exploited, ranked — free. OPEN CVE WATCH → Every week, thousands of new CVEs get published. Almost none of them matter to you. Two lists do: the vulnerabilities attackers are already exploiting, and the fresh criticals affecting the software you actually run. So I built a monitor that watches both […]
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MEXC vs Gate Spreads Live cross-exchange price spreads — free, no sign-up. OPEN MEXC VS GATE SPREADS → Why I built it My MEXC vs Gate.io trade-data comparison compared one stored week — but spreads move by the minute. Checking whether a pair prices higher on MEXC or Gate.io meant pulling two ticker feeds by […]
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