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Show HN: Glucera Local-first iPhone glucose app, seeking fingerstick beta tester

https://glucera.app/
2•kv0•1h ago
Glucera will be a blood glucose viewer for iPhone and Apple Watch. No account, no subscription, no cloud. One-time $2.99 (or maybe free).

Reads from HealthKit and pairs with the Bluetooth enabled Glucose Meters that don't roll their own crypto/weird standard. (standard GATT Glucose Profile). Data never leaves the device. No analytics SDKs, no third parties.

Not a CGM app — Libre and Dexcom users won't get value here. Those ecosystems already have decent native apps, and Libre's protocol is closed to third parties anyway..

Built for fingerstick users.

Looking for beta testers :)

The world's longest railway tunnel is being built under the Alps

https://www.euronews.com/my-europe/2026/05/01/world-record-made-in-europe-the-worlds-longest-rail...
1•vrganj•1m ago•0 comments

Ask HN: Tips for Longevity, as a Software Engineer

1•2bird3•4m ago•0 comments

Modern jet engine turbines: each blade a single crystal (2015)

https://www.americanscientist.org/article/each-blade-a-single-crystal
1•whycome•4m ago•0 comments

Ask HN: Please, I need your help to try out an iOS app I work on

1•erosa01•5m ago•1 comments

Alert-Driven Monitoring

https://simpleobservability.com/docs/alert-driven-monitoring
1•khazit•5m ago•0 comments

ImagePrint 1.52 Released

https://www.imageprint.io/blog/whats-new-in-imageprint-1-52/
1•coragi•7m ago•0 comments

CPU Work and GPU Work

https://www.talhoffman.com/2026/05/03/cpu-work-and-gpu-work/
2•talhof8•10m ago•0 comments

Fisheries and Aquaculture

https://www.oecd.org/en/topics/fisheries-and-aquaculture.html
1•mooreds•10m ago•0 comments

Show HN: Hello, World in many different languages

https://languages.jdunn.dev/
2•jdironman•13m ago•1 comments

NOAA forecaster on how this year's El Niño could shatter records

https://www.livescience.com/planet-earth/weather/one-of-the-most-rapid-transitions-that-ive-seen-...
2•ukz•13m ago•0 comments

I Have Lived in Your Camp

https://green.spacedino.net/i-have-lived-in-your-camp/
1•mooreds•15m ago•0 comments

The Petroleum System Is Entering Its Volatile Decline Phase

https://cleantechnica.com/2026/04/29/the-petroleum-system-is-entering-its-volatile-decline-phase/
1•xbmcuser•16m ago•0 comments

Company said I could move and then changed their mind

https://www.askamanager.org/2026/04/company-said-i-could-move-and-then-changed-their-mind-how-do-...
2•mooreds•20m ago•0 comments

Show HN: I made a simulator for personal finance (5 year update)

https://projectionlab.com/
1•scubakid•21m ago•0 comments

Custom Voices and Voice Library

https://x.ai/news/grok-custom-voices
1•tjek•23m ago•0 comments

I'm a late arrival to short-form video – its effect on my life has shocked me

https://www.theguardian.com/commentisfree/2026/may/03/algorithm-short-form-video-overload
2•andsoitis•25m ago•0 comments

Sandwich Theorem

https://en.wikipedia.org/wiki/Squeeze_theorem
1•_Microft•28m ago•0 comments

Pipelight

https://pipelight.dev/
1•fulafel•29m ago•0 comments

After giving away $26B MacKenzie Scott's wealth remains largely unchanged

https://timesofindia.indiatimes.com/world/us/after-giving-away-26-billion-in-philanthropy-mackenz...
1•gscott•29m ago•0 comments

The Lobster in the Hot Pot – OpenTentacle

https://opententacle.com/article/2026-04-05/
1•birdculture•29m ago•0 comments

Dogs' brains began to shrink at least 5k years ago

https://www.theguardian.com/science/2026/apr/29/dogs-brains-shrink-5000-years-ago
1•gmays•31m ago•0 comments

What are the chances a hurricane will hit my home?

https://www.noaa.gov/stories/what-are-chances-hurricane-will-hit-my-home
1•bilsbie•32m ago•0 comments

How the JVM Optimizes Generic Code – A Deep Dive [pdf]

https://cr.openjdk.org/~jrose/pres/202603-SpecializedGeneric.pdf
2•Tomte•33m ago•0 comments

I rebuilt my blog's cache. Bots are the audience now

https://hoeijmakers.net/thirty-years-of-caching-sorted-in-an-afternoon/
3•robhoeijmakers•34m ago•1 comments

Robotics startups are losing to slow feedback loops

https://www.simbiotic.dev/blog/robotics-startup-development-speed
1•nikhilol•35m ago•0 comments

I completed 100 Days of Java over 5 years and mapped the journey as a graph

https://mohibulsblog.netlify.app/java/100daysofjava/graph/
1•celurian92•41m ago•1 comments

Learn concurrency – a deep dive into multithreading with Python

https://blog.geekuni.com/2026/04/python-concurrency.html
2•aquastorm•42m ago•0 comments

StackGraveyard.dev – Live mortality scores for NPM packages

https://www.stackgraveyard.dev/
1•tlseternal•43m ago•0 comments

What If Your Boss Monitored Your Emotions?

https://www.theatlantic.com/culture/2026/05/worker-surveillance-emotion-ai/687029/
2•Brajeshwar•43m ago•1 comments

1984 Called: It predicted our AI-obsessed reality

https://medium.com/@tk512/the-ai-predictions-in-the-movie-electric-dreams-1984-0c6a47a6326e
1•sgt•45m ago•0 comments