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Human

https://quarter--mile.com/Human
240•surprisetalk•5h ago•108 comments

Internet Artifacts

https://neal.fun/internet-artifacts/
155•mikerg87•1d ago•22 comments

LLMs get lost in multi-turn conversation

https://arxiv.org/abs/2505.06120
213•simonpure•6h ago•128 comments

AlphaEvolve: A Gemini-powered coding agent for designing advanced algorithms

https://deepmind.google/discover/blog/alphaevolve-a-gemini-powered-coding-agent-for-designing-advanced-algorithms/
819•Fysi•17h ago•223 comments

Python lib generates its code on-the-fly based on usage

https://github.com/cofob/autogenlib
114•klntsky•3d ago•41 comments

What is HDR, anyway?

https://www.lux.camera/what-is-hdr/
623•_kush•19h ago•283 comments

Working on complex systems: What I learned working at Google

https://www.thecoder.cafe/p/complex-systems
34•0xKelsey•1d ago•20 comments

EU ruling: tracking-based advertising [...] across Europe has no legal basis

https://www.iccl.ie/digital-data/eu-ruling-tracking-based-advertising-by-google-microsoft-amazon-x-across-europe-has-no-legal-basis/
110•mschuster91•1h ago•55 comments

Tiptap (YC S23) Is Hiring

https://www.ycombinator.com/companies/tiptap/jobs/1S8DTcM-growth-manager
1•philipisik•1h ago

Show HN: Muscle-Mem, a behavior cache for AI agents

https://github.com/pig-dot-dev/muscle-mem
178•edunteman•13h ago•41 comments

Show HN: Semantic Calculator (king-man+woman=?)

https://calc.datova.ai
128•nxa•12h ago•136 comments

Git Bug: Distributed, Offline-First Bug Tracker Embedded in Git, with Bridges

https://github.com/git-bug/git-bug
228•stefankuehnel•1d ago•80 comments

Changes since congestion pricing started in New York

https://www.nytimes.com/interactive/2025/05/11/upshot/congestion-pricing.html
279•Vinnl•1d ago•358 comments

A server that wasn't meant to exist

https://it-notes.dragas.net/2025/05/13/the_server_that_wasnt_meant_to_exist/
321•jaypatelani•16h ago•91 comments

Self-hostable webhook tester in go

https://testwebhook.xyz
30•muliswilliam•1d ago•6 comments

Doom on the Oldest Digital Computer in America [video]

https://www.youtube.com/watch?v=no0CkQk7id0
9•zdw•3d ago•0 comments

NASA Stennis Releases First Open-Source Software

https://www.nasa.gov/centers-and-facilities/stennis/stennis-first-open-source-software/
44•mindcrime•1d ago•20 comments

Lightweight open source reCaptcha alternative

https://github.com/altcha-org/altcha
24•michalpleban•1d ago•2 comments

Databricks acquires Neon

https://www.databricks.com/blog/databricks-neon
322•davidgomes•22h ago•198 comments

The cryptography behind passkeys

https://blog.trailofbits.com/2025/05/14/the-cryptography-behind-passkeys/
210•tatersolid•21h ago•187 comments

Internet Scrabble Club (2002-)

https://isc.ro/
40•indigodaddy•3d ago•15 comments

Critical Warning for External Purchases in Apple App Store

https://mjtsai.com/blog/2025/05/14/critical-warning-for-external-purchases-in-app-store/
32•mpweiher•2h ago•9 comments

Migrating to Postgres

https://engineering.usemotion.com/migrating-to-postgres-3c93dff9c65d
169•shenli3514•11h ago•148 comments

Our narrative prison

https://aeon.co/essays/why-does-every-film-and-tv-series-seem-to-have-the-same-plot
148•anarbadalov•16h ago•119 comments

How to Build a Smartwatch: Picking a Chip

https://ericmigi.com/blog/how-to-build-a-smartwatch-picking-a-chip/
264•rcarmo•1d ago•108 comments

Updated rate limits for unauthenticated requests

https://github.blog/changelog/2025-05-08-updated-rate-limits-for-unauthenticated-requests/
83•xena•5d ago•112 comments

Hegel 2.0: The imaginary history of ternary computing (2018)

https://www.cabinetmagazine.org/issues/65/weatherby.php
45•Hooke•2d ago•4 comments

Interferometer Device Sees Text from a Mile Away

https://physics.aps.org/articles/v18/99
222•bookofjoe•4d ago•57 comments

How the economics of multitenancy work

https://www.blacksmith.sh/blog/the-economics-of-operating-a-ci-cloud
159•tsaifu•19h ago•35 comments

UK's Ancient Tree Inventory

https://ati.woodlandtrust.org.uk/
73•thinkingemote•22h ago•57 comments
Open in hackernews

Self-hostable webhook tester in go

https://testwebhook.xyz
30•muliswilliam•1d ago

Comments

muliswilliam•1d ago
I built a small tool to help debug and inspect webhooks more easily. It gives you a unique URL where you can see incoming requests, headers, payloads, and even replay them.

Built in Go, it’s lightweight, open source, and free to use.

Try it out: https://testwebhook.xyz

Code: https://github.com/muliswilliam/webhook-tester

Would love your feedback or suggestions!

markoph•1h ago
This post falls under Show HN and should probably follow the guidelines (eg. title should begin with Show HN:). See https://news.ycombinator.com/showhn.html

Tool itself looks interesting and I've been looking for something like this several times. I'm bookmarking it for next time.

muliswilliam•1h ago
Thank you, I will post it in show HN
m4tthumphrey•1h ago
So I’ve been looking at these sorts of tools recently as am building webhooks into my project. One common theme is that none of them allow you to change/add the response headers; only the body.

Otherwise it looks good! If you add the above I will have a reason to stop looking!

muliswilliam•1h ago
Thank you for the feedback. I will add a feature to customize response headers today.

Any other features you would like to see in the app?

m4tthumphrey•1h ago
Honestly no… testing them needn’t be a complex process!

There is another service that allows for scripting which I’m sure some people love, but I just need somewhere I can set the response.