Hacker News: jhealy

New comment by jhealy in "ISO PDF spec is getting Brotli – ~20 % smaller documents with no quality loss"

jhealy — Thu, 22 Jan 2026 20:55:03 +0000

The article is wrong, the PDF spec has introduced breaking changes plenty of times. It’s done slowly and conservatively though, particularly now that the format is an ISO spec.

The PDF format is versioned, and in the past new versions have introduced things like new types of encryption. It’s quite probable that a v1.7 compliant PDF won’t open on a reader app written when v1.3 was the latest standard.

New comment by jhealy in "Late night pizzeria nearby The Pentagon has suddenly surged in traffic"

jhealy — Sat, 03 Jan 2026 11:42:50 +0000

Viewable without logging in to x though, and shareable on fediverse

New comment by jhealy in "Late night pizzeria nearby The Pentagon has suddenly surged in traffic"

jhealy — Sat, 03 Jan 2026 10:20:29 +0000

Via fediverse, for those not on x: https://bird.makeup/users/penpizzareport/statuses/2007347706...

Inline RBS Type Hints for a Rubygem Codebase

jhealy — Tue, 30 Dec 2025 01:38:34 +0000

Article URL: https://yob.id.au/2025/12/30/inline-rbs-comments.html

Comments URL: https://news.ycombinator.com/item?id=46428482

Points: 2

# Comments: 0

New comment by jhealy in "T-Ruby is Ruby with syntax for types"

jhealy — Sat, 27 Dec 2025 02:36:30 +0000

interesting idea, good on them for trying something different in the Ruby ecosystem.

The website is quite extensive, but the gem only has ~1.5k downloads. It’s presumably very early on the adoption curve

New comment by jhealy in "Post-mortem of Shai-Hulud attack on November 24th, 2025"

jhealy — Sat, 29 Nov 2025 23:48:55 +0000

At a previous employer we did this with our docs repo.

The public docs site was managed and deployed via a private GitHub repository, and we had a public GitHub repo that mirrored it.

The link between them was an action on the private repo that pushed each new man commit to the mirror. Customer PRs on the public mirror would be merged into the private repo, auto synced to the mirror, and GH would mark the public PR as merged when it noticed the PR commits were all on main.

It was a bit of a headache, but worked well enough once stag involved in docs built up some workflow conventions. The driver for the setup was the docs writers want the option to develop pre-release docs discretely, but customer contributions were also valued.

New comment by jhealy in "Rubygems.org AWS Root Access Event – September 2025"

jhealy — Thu, 09 Oct 2025 20:06:19 +0000

Since 2024 you can disable the root credentials on all accounts except the Organization management account: https://aws.amazon.com/blogs/aws/centrally-managing-root-acc...

I don't think the post mortem details whether the root access was on the org management account or an org member account.

New comment by jhealy in "Hidden risk in Notion 3.0 AI agents: Web search tool abuse for data exfiltration"

jhealy — Sat, 20 Sep 2025 08:32:29 +0000

Not really a new vulnerability, and yet Notion just shipped it this week. All caution thrown to the wind in the name of an announce-able AI feature

New comment by jhealy in "Ruby Central's Attack on RubyGems [pdf]"

jhealy — Fri, 19 Sep 2025 12:05:01 +0000

Baltic nations disconnect from Russian power grid

jhealy — Sun, 09 Feb 2025 06:00:52 +0000

Article URL: https://www.abc.net.au/news/2025-02-09/baltic-nations-disconnect-from-russia-power-grid/104915528

Comments URL: https://news.ycombinator.com/item?id=42988807

Points: 7

# Comments: 1

New comment by jhealy in "Singapore OKs 4,300km subsea cable for importing electricity from Australia"

jhealy — Tue, 22 Oct 2024 09:28:39 +0000

I live in Melbourne (on Jemena’s distribution network) and this isn’t my experience.

Our power is very reliable and rarely goes out. Every few years a car hits a pole or something and we get a brief period of quiet time

New comment by jhealy in "Dear AWS, please let me be a cloud engineer again"

jhealy — Sun, 14 Jul 2024 01:13:46 +0000

Related content: Corey Quinn on the AWS GenAI obsession

https://www.lastweekinaws.com/blog/amazon-genai-services/

Amazon GenAI Services

jhealy — Fri, 12 Jul 2024 23:42:10 +0000

Article URL: https://www.lastweekinaws.com/blog/amazon-genai-services/

Comments URL: https://news.ycombinator.com/item?id=40950476

Points: 2

# Comments: 0

New comment by jhealy in "Beware of EuroDNS"

jhealy — Sat, 13 Apr 2024 22:39:33 +0000

If you’re still looking for an alternative, https://dnsimple.com is an excellent engineer focused no bullshit domain registrar and they support .co.za

Semantic versioning is a mistake

jhealy — Thu, 28 Dec 2023 12:07:29 +0000

Article URL: https://reprog.wordpress.com/2023/12/27/semantic-versioning-is-a-terrible-mistake/

Comments URL: https://news.ycombinator.com/item?id=38792638

Points: 10

# Comments: 12

New comment by jhealy in "Ruby 3.3"

jhealy — Mon, 25 Dec 2023 08:52:38 +0000

Implicit or explicit, I’m OK with the global namespace.

On paper it’s awkward, but in reality convention and social norms make it rarely an issue.

The global namespace only supporting exactly one version of each gem encourages a health culture of stable ABIs and deprecation periods too. An absolute dream compared to some language ecosystems

New comment by jhealy in "Amazon Aurora PostgreSQL Now Supports RDS Data API"

jhealy — Sun, 24 Dec 2023 08:32:10 +0000

I've never used aurora serverless v1, so I'd somehow never heard of the RDS data API before this.

It seems like it'd be useful in some cases, particularly because connection pooling to postgres is managed for you.

Is anyone using it production workloads? How have you found it?

Bummer that it can only query the writer and not readers.

New comment by jhealy in "Announcing Amazon Aurora Limitless Database"

jhealy — Sun, 24 Dec 2023 08:28:32 +0000

They were.

https://aws.amazon.com/about-aws/whats-new/2023/12/amazon-au...

Amazon Aurora PostgreSQL Now Supports RDS Data API

jhealy — Sun, 24 Dec 2023 08:26:48 +0000

Article URL: https://aws.amazon.com/about-aws/whats-new/2023/12/amazon-aurora-postgresql-rds-data-api/

Comments URL: https://news.ycombinator.com/item?id=38752100

Points: 2

# Comments: 1

New comment by jhealy in "Goodbye integers, hello UUIDv7"

jhealy — Mon, 02 Oct 2023 10:23:34 +0000

I'm not the author but I work at the same company.

None of our systems require perfect ordering of IDs generated across our distributed system. Most of the system was built with random UUIDv4 identifiers so no code assumes the ID ordering is significant.

However, in much of our system recent data is frequently accessed while old data is rarely accessed. In that world, just having the IDs *approximately* clustered in creation order has been a huge performance boost for many queries, and we've seen significant reduction in postgres Write Ahead Log rates, because writes to UID indexes happen in a smaller number of pages.