Show HN: Lynk – Real-time and daily app updates via websockets (macOS, no SDKs)

5 ssh_shailesh 5 6/17/2025, 1:00:48 AM github.com ↗

Hi hackers!

I'm a self-taught solo teenage dev

ever wanted to show what you're doing right now on the internet?

well I've been wanting to for a while, so I built Lynk, a lightweight macOS app that tracks your active apps, window titles, and daily usage in real time, and broadcasts that data over WebSockets. Oh and it also updates whenever you switch apps to connected clients!

No SDKs, no APIs — just local tracking + a websocket endpoint you can ping from any language.

GitHub: https://github.com/shaileshsaravanan/lynk

Comments (5)

MasihMinawal · 1h ago

cool idea! i am not running on mac, so i did not run it on my machine. please update me when i can run it on windows or linux.

httpblahgeek · 8h ago

Does it track only the currently focused app, or does it collect background activity too? Wondering how invasive it might feel in day-to-day use.

ssh_shailesh · 8h ago

+ its not very invasive, for me it just launches at startup and thats it, no notifications, alerts, or anything

ssh_shailesh · 8h ago

it only tracks the name of what window ur in currently

No comments yet

iJohnDoe · 8h ago

Very clever and clean design. Congrats on your Show HN!

Accumulation of Cognitive Debt When Using an AI Assistant for Essay Writing Task (brainonllm.com)

The magic of through running (worksinprogress.news)

Fossify – A suite of open-source, ad-free apps (github.com)

What happens when clergy take psilocybin (nautil.us)

How Frogger 2’s source code was recovered from a destroyed tape [video] (youtube.com)

WhatsApp introduces ads in its app (nytimes.com)

Show HN: Chawan TUI web browser (chawan.net)

Selfish reasons for building accessible UIs (nolanlawson.com)

Show HN: Canine – A Heroku alternative built on Kubernetes (github.com)

The Humble Programmer (1972) (cs.utexas.edu)

Photon transport through the entire adult human head (spiedigitallibrary.org)

Benzene at 200 (chemistryworld.com)

Why Claude Code feels like magic? (omarabid.com)

Iron nitride permanent magnets made with DIY ball mill [video] (youtube.com)

Show HN: I recreated 90s Mode X demoscene effects in JavaScript and Canvas (jdfio.com)

The drawbridges come up: the dream of a interconnected context ecosystem is over (dbreunig.com)

OpenAI wins $200M U.S. defense contract (cnbc.com)

Natural rubber with high resistance to crack growth (nature.com)

Show HN: Nexus.js - Fabric.js for 3D (punk.cam)

Dull Men’s Club (theguardian.com)

Jacob's Phone Simulator (jacobfilipp.com)

ZX Spectrum graphics magic (zxonline.net)

Pitfalls of premature closure with LLM assisted coding (shayon.dev)

Generative AI coding tools and agents do not work for me (blog.miguelgrinberg.com)

Blaze (YC S24) Is Hiring (ycombinator.com)

Nanonets-OCR-s – OCR model that transforms documents into structured markdown (huggingface.co)

Open-Source RISC-V: Energy Efficiency of Superscalar, Out-of-Order Execution (arxiv.org)

Show HN: Zeekstd – Rust Implementation of the ZSTD Seekable Format (github.com)

Working on databases from prison (turso.tech)

Snorting the AGI with Claude Code (kadekillary.work)

OpenTelemetry for Go: Measuring overhead costs (coroot.com)

Retrobootstrapping Rust for some reason (graydon2.dreamwidth.org)

Battle to eradicate invasive pythons in Florida achieves milestone (phys.org)

Breaking Quadratic Barriers: A Non-Attention LLM for Ultra-Long Context Horizons (arxiv.org)

Case Study: Mars College (supernuclear.substack.com)

Fun with Telnet (brandonrozek.com)

Writing in the Age of LLMs (sh-reya.com)

Adding public transport data to Transitous (volkerkrause.eu)

Occurences of swearing in the Linux kernel source code over time (vidarholen.net)

Show HN: dk – A script runner and cross-compiler, written in OCaml (diskuv.com)

Start your own Internet Resiliency Club (bowshock.nl)

Privacy implications of browsers’ (mis)implementations of Widevine EME (2023) (hal.science)

William Langewiesche, the 'Steve McQueen of Journalism,' Dies at 70 (nytimes.com)

Maya Blue: Unlocking the Mysteries of an Ancient Pigment (mexicolore.co.uk)

What I talk about when I talk about IRs (bernsteinbear.com)

Identity Assertion Authorization Grant (ietf.org)

Finland warms up the world's largest sand battery, the economics look appealing (techcrunch.com)

Is gravity just entropy rising? Long-shot idea gets another look (quantamagazine.org)

Transparent peer review to be extended to all of Nature's research papers (nature.com)

Why SSL was renamed to TLS in late 90s (2014) (tim.dierks.org)

Show HN: Lynk – Real-time and daily app updates via websockets (macOS, no SDKs)

Comments (5)