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Before yesterdayH N

Wes mckinney releases multiple bangers

✇ H N
21 May 2026 at 16:29
By: pbd

Article URL: https://kenn.io/

Comments URL: https://news.ycombinator.com/item?id=48225399

Points: 5

# Comments: 0

Launch HN: Runtime (YC P26) – Sandboxed coding agents for everyone on a team

✇ H N
21 May 2026 at 16:07
By: gustrigos

Hey HN, We're Gus and Carlos from Runtime (https://runtm.com). We're building infra that lets your whole team (including non-engineers) ship with Claude Code, Codex, and other agents without engineering having to handhold every session.

After Mentum (YC S21) was acquired, I personally shipped 4 full-stack products in 3 months using coding agents. When I tried to roll the same workflow out to the rest of the team, it fell apart: Most PRs were unmergeable slop - Every repo required an engineer doing one-off local setup. - Skills and context lived in one person's head. - There was no safe way for a PM to touch a real codebase without risking a bad deploy or a secrets leak.

Carlos comes from building agentic reconciliation systems at Modern Treasury and had a similar experience when letting his support team use devin.

We ended up building internal background agent infra but it quickly became a nightmare to mantain and develop. We built Runtime so you don't have to do this kind of thing.

Runtime work like as follows. Engineering defines the context once: system instructions, skills, and scoped integrations installable via CLI, mise, npm, or any package manager. Then Runtime snapshots your full running environment including multi-service Docker Compose setups, Kafka, Redis, seeded DBs, so it comes up in milliseconds with every server already running.

We orchestrate across sandbox providers like E2B, Daytona, EC2 or self-hosted K8s depending on your setup. Secrets are injected through our managed proxy so they never touch the agent directly, and guardrails run at the infrastructure level: command allow/deny lists, network egress controls, and RBAC scoped per human and per agent. Every session also gets a shareable preview URL, so internal builds go from sandbox to the rest of the team without needing production access.

Runtime works with whichever agent your team already uses: Claude Code, Codex, Cursor, Copilot, Gemini, Devin. You can trigger sandboxes from our web app, CLI, Slack, Linear, GitHub, or API.

One of our customers built an on-call inspector that wires PagerDuty, Sentry, and their repo so when an alert fires, the agent finds the cause and opens a PR with a unit test before anyone gets paged. Another runs a finance agent in a private Slack channel pulling from Stripe, NetSuite, and Snowflake to run reconciliations in minutes with source rows attached.

A fintech unicorn and several YC scaleups are live on Runtime, including a few teams who had built similar infrastructure internally and handed it to us to take over.

The core is open source at https://github.com/runtm-ai/runtm. Hosted version is live at https://app.runtm.com, free tier included. We're charging a flat platform fee plus compute, no token markup.

Check our demo: https://www.youtube.com/watch?v=wLwj__aEEh4

We'd love to hear how you're thinking about the infra for letting more people across your org use coding agents without creating chaos!

Comments URL: https://news.ycombinator.com/item?id=48225040

Points: 11

# Comments: 0

Michael Keating has died

✇ H N
21 May 2026 at 14:31
By: speckx

Article URL: https://www.bigfinish.com/news/v/michael-keating-1947-2026

Comments URL: https://news.ycombinator.com/item?id=48223303

Points: 46

# Comments: 25

Google's Antigravity Bait and Switch

✇ H N
21 May 2026 at 13:50
By: ssiddharth

Article URL: https://www.0xsid.com/blog/antigravity-bait-n-switch

Comments URL: https://news.ycombinator.com/item?id=48222529

Points: 273

# Comments: 147

Show HN: I Dedicated 4 Years to Mastering Offline Password Cracking

✇ H N
21 May 2026 at 12:56
By: bojta-lepenye

Hi everyone,

I am Bojta Lepenye, and first of all, I want to thank the core developers of Hashcat. In my experience, it is quite literally the most capable tool available for offline password cracking across a wide range of use cases.

I have spent the last 4 years (from age 14 to 18) extensively working with Hashcat and the tools surrounding it, and I have documented what I have learned throughout that time (since January 18, 2022) in my first book. During that period, I also had to continuously update and rewrite major sections as the field evolved. One example was the introduction of GPU support for Argon2 and other memory-hard password hashing algorithms, which significantly changed some cracking workflows.

My passion for this book, or its “quick starter,” if you will, came from an ethically conducted penetration test I performed with full authorization at my school. This is something I am both hesitant and quite proud to acknowledge.

At the beginning, I simply wrote down everything I had learned from YouTube videos and online blogs. However, not long after starting my project, I realized I practically knew nothing about password security, and that small 10 to 15 pages I had written would never be enough if someone was looking for a professional guide to cracking passwords.

The other main driving force behind the book was the fact that while researching online, browsing forums, reading academic papers and white papers, watching videos, exploring blogs, inspecting presentations, and examining infographics, I did not find a single source that comprehensively covers and explains everything one needs to understand about offline password cracking. Literally. Not one.

Therefore, I continued my research and learned about password hashing algorithms, the security properties of hash functions, advanced hash cracking techniques, password analysis, attack optimization, and much, much more.

From the very beginning, I wanted to share this knowledge with the community because having access to a resource like this would have helped me tremendously when I first started learning password cracking.

I sincerely hope this work will be useful to both beginners and experienced professionals alike, and I look forward to hearing your thoughts and feedback.

I have also put together a little video to give you a little sneak peek into it. It is on Google Drive. It is the official domain, and you do not need to download anything. Here it is: https://drive.google.com/file/d/13LeysSZO8Mx-LGKt8UQjUGBKOYH...

If you are interested, the book is now publicly available on Amazon, and can be read for free with a Kindle Unlimited subscription: https://www.amazon.com/dp/B0GX36XRCD

Comments URL: https://news.ycombinator.com/item?id=48221896

Points: 83

# Comments: 5

FatGid: FreeBSD 14.x kernel local privilege escalation

✇ H N
21 May 2026 at 12:15
By: WhyNotHugo

Article URL: https://fatgid.io/

Comments URL: https://news.ycombinator.com/item?id=48221415

Points: 55

# Comments: 13

Flipper One – we need your help

✇ H N
21 May 2026 at 11:03
By: sandebert

Article URL: https://blog.flipper.net/flipper-one-we-need-your-help/

Comments URL: https://news.ycombinator.com/item?id=48220647

Points: 703

# Comments: 318

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