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MegaDev AI Workshop

Hacker News - Fri, 08/07/2026 - 8:07pm

Article URL: https://mega.dev

Comments URL: https://news.ycombinator.com/item?id=49217649

Points: 1

# Comments: 1

Categories: Hacker News

Long Dark Blues

Hacker News - Fri, 08/07/2026 - 8:06pm

Article URL: https://longdarkblues.com/

Comments URL: https://news.ycombinator.com/item?id=49217644

Points: 2

# Comments: 0

Categories: Hacker News

Now more than ever, defenders must look for suspicious behavior, not specific malware. Learn how to defend against two trending initial access methods.

Security Wire Daily News - Fri, 08/07/2026 - 7:56pm
Now more than ever, defenders must look for suspicious behavior, not specific malware. Learn how to defend against two trending initial access methods.

Right to Repair–For Your Body

Hacker News - Fri, 08/07/2026 - 6:44pm

Article URL: https://fourthievesvinegar.org/

Comments URL: https://news.ycombinator.com/item?id=49217131

Points: 1

# Comments: 0

Categories: Hacker News

Show HN: Dirblock+envblock – tiny whitelist guards for dirs and env secrets

Hacker News - Fri, 08/07/2026 - 6:43pm

After I missed getting hit by the LiteLLM attack by 30 minutes, I decided to see what I could do about it and wrote dirblock. It uses fanotify to block access to ~/.ssh, ~/.gpg, etc. with whitelists of trusted programs — everything else is denied. Shortly after, I wrote its spiritual cousin, envblock, which uses eBPF to stop untrusted programs from receiving real values of GH_TOKEN, AWS keys, and similar environment variables (it poisons them instead). I’ve been running both on my own machines for months. They are intentionally small and narrow (67 KB and 119 KB). Setup is usually under an hour once you know which directories and variables matter. Config is TOML, dry-run modes exist, and they fail open / poison rather than try to be a full MAC system. I’ve just been allowed to open source them. https://github.com/roku-oss/dirblock https://github.com/roku-oss/envblock Happy to answer questions.

Comments URL: https://news.ycombinator.com/item?id=49217129

Points: 1

# Comments: 0

Categories: Hacker News

Show HN: More Branchless Optimization

Hacker News - Fri, 08/07/2026 - 6:43pm

I thought the recent post about branchless optimization in Rust was pretty cool.

This morning I came across a HN post about someone's hand rolled word counter in C. I realized it was a great candidate to remove branches from the inner loop.

It gets more than a 2x speed up when branches are removed. Fun little experiment.

Comments URL: https://news.ycombinator.com/item?id=49217128

Points: 1

# Comments: 0

Categories: Hacker News

Show HN: Emacs Liquid Glass

Hacker News - Fri, 08/07/2026 - 6:37pm
Categories: Hacker News

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