Hacker News: dmillar

New comment by dmillar in "Cloudflare Drop"

dmillar — Wed, 08 Jul 2026 21:02:21 +0000

Replit is used a lot in this context. Their agent is good, but their circumvent-policies-to-get-something-in-front-of-execs-quickly is an amazing and mis-priced feature.

New comment by dmillar in "Cloudflare Drop"

dmillar — Wed, 08 Jul 2026 20:53:35 +0000

Low barrier services don't care who's first in this epoch.

New comment by dmillar in "Another Day Has Come"

dmillar — Wed, 22 Apr 2026 23:14:21 +0000

You know it's big news when Gruber makes the HN homepage.

New comment by dmillar in "During Helene, I just wanted a plain text website"

dmillar — Mon, 05 Jan 2026 11:03:49 +0000

https://plaintextsports.com

New comment by dmillar in "Your Supabase is public if you turn off RLS"

dmillar — Mon, 22 Dec 2025 20:57:34 +0000

- Enable RLS

and/or

- Turn off the REST API (if you just use pg connections)

- Disable the JWT/anon token(s)

New comment by dmillar in "Multimodal WFH setup: flight SIM, EE lab, and music studio in 60sqft/5.5M²"

dmillar — Wed, 13 Aug 2025 00:03:34 +0000

Well, I see we have very similar hobbies and careers! Nice setup.

New comment by dmillar in "Jane Street's sneaky retention tactic"

dmillar — Mon, 30 Jun 2025 17:23:20 +0000

Strats as a role has been downplayed and realigned a lot over the last several years. Traditionally, a strat was indeed a "quantitative strategist" that sat on the desk, often next to voice traders, developing tools, pricing models, trading systems, etc.

One of the people I regard as the Godfather/OG strat is Emanuel Derman (https://emanuelderman.com/). Another transformative (in my time) person in the Strat complex was Marty Chavez (https://www.rmartinchavez.com/). Both amazing people on and off the trading floor.

New comment by dmillar in "Jane Street's sneaky retention tactic"

dmillar — Sat, 28 Jun 2025 17:12:18 +0000

Goldman has done this for decades, pushing it even further by having developed their own language (Slang), graph db (SecDB), and IDE (SecView). Many engineers resist working it in, but for any strat it's mandatory.

New comment by dmillar in "Starcloud"

dmillar — Wed, 14 May 2025 00:40:29 +0000

If this and/or the policies, leadership, and mindset that enable these kinds of things interest you, I highly recommend Abundance by Ezra Klein and Derek Thompson. IIRC, they outline data centers in space in his utopian introduction.

New comment by dmillar in "DuckDB is probably the most important geospatial software of the last decade"

dmillar — Sun, 04 May 2025 21:46:36 +0000

What the "right answer" is will vary widely on application and analyst. That's one reason there are so many coordinate ref systems. If you keep everything in 3857, you'll get answers in ~meters, but whether that's "right" depends on where and how large the distance or geom is and what your precision threshold is. So, really, everyone's needs are necessarily "specific."

New comment by dmillar in "DuckDB is probably the most important geospatial software of the last decade"

dmillar — Sun, 04 May 2025 21:32:38 +0000

DuckDB > geopandas, certainly for anything out of core. Though, I recently gave up on importing 70GB worth of large multipolygons (from a csv in hex wkb), and just used a postgis container. In concert with DuckDB's growth, I'd also mark the advent of geoparquet.

The big change, in my view, over the past decade in GIS software, is in compute and storage efficiency across the typical stack. DuckDB has become a part of this, but h/t to the advances from shapely, geopandas, geoparquet, and GDAL. There's a lot of overlap in that venn diagram, and credit should be spread around. QGIS is great, too, though I feel there is market opportunity to apply 90/10 to its massive feature set and move it to the web.

New comment by dmillar in "Digital Archivists: Protecting Public Data from Erasure"

dmillar — Wed, 02 Apr 2025 18:10:32 +0000

Many criminal records, petty or otherwise, are public record. When archived, expunged or dismissed infractions never truly become that. A traffic violation or other petty misdemeanor from 20 years ago, that has been expunged from official record, can show up on a background check because companies archive public data. So, there is a flip side to this.

New comment by dmillar in "Ask HN: Who is hiring? (August 2024)"

dmillar — Fri, 02 Aug 2024 14:51:57 +0000

Arturo AI | MLEng and MLOps Roles | 130-190k DOE | https://www.arturo.ai/careers

Computer vision (segmentation) and aerial imagery experience a big plus for the eng role. Remote/hybrid. Proximity to Utah preferred.

python, pytorch, sql, stats, linux, mlflow, aws

if interested, send me an email : dmillar at the above domain.

New comment by dmillar in "The UK can go back to being the richest country in the world"

dmillar — Wed, 10 Jul 2024 04:21:57 +0000

The UK still has a heavily embedded caste or caste-like social circumstance. Pharma and finance have somewhat eschewed this tradition, but even those industries still have its embedded lords and ladies. Many of their smartest head to the US (or elsewhere), and Brexit has set them back decades from achieving the "richest country" status. A software engineer can double their earnings by moving to the US (if they can manage to). The owners of capital are generally not creators, and until that changes nor will their economic station.

New comment by dmillar in "Ask HN: Can anyone recommend a Windows Systems programming book?"

dmillar — Wed, 29 May 2024 14:58:51 +0000

K&R

New comment by dmillar in "Ask HN: Who is hiring? (April 2024)"

dmillar — Mon, 01 Apr 2024 19:01:43 +0000

Arturo.ai | MLOps/Data Engineer | Remote/Hybrid | Utah preferred

- Python, solid ML lifecycle experience, computer vision preference

- AWS SageMaker

- SQL, data strategy, data warehousing

- Desire to work in highly dynamic/changing environment

- $150k-180k plus bonus/equity

Please read the JD on the site. If interested, please send your MLOps, SageMaker experience, and any other information you feel is relevant to the email below.

* Unfortunately we unable to sponsor H1B/transfers at this time

recruiting@arturo.ai | https://www.arturo.ai/careers

New comment by dmillar in "Rebuilding Netflix's video processing pipeline with microservices"

dmillar — Fri, 09 Feb 2024 23:34:36 +0000

Would be interested to also know how they handle per-title audio. With stereo -> 5.1 -> 7.1 and the sides and wide layout variants, how do they think about this during the inspection and encoding process? Being completely naive to Netflix's source media, and assuming it comes in a variety for formats and media, it seems like there are decision to make there. Though audio obviously has a much lower bandwidth burden, one would think there could still be QoE gains (and bandwidth savings) by doing things that AV1 can do with different scenes in something like OPUS.

New comment by dmillar in "A confusing probability question: Red and green balls in an urn"

dmillar — Wed, 31 Jan 2024 18:42:11 +0000

You're right. Thinking back, I think I asked "what's the average distance" not "what's most probable".

New comment by dmillar in "A confusing probability question: Red and green balls in an urn"

dmillar — Wed, 31 Jan 2024 17:11:23 +0000

You have two random uniform variables and the distance/difference/change between to finite points.

Put another way (and code it up if you want). Select two random uniformly distributed points between 0 and 1. Do this 10_000 times, whats the average distance between the two?

This gets to the question of "most probable" vs "expected value". A conversation I always welcomed.

New comment by dmillar in "A confusing probability question: Red and green balls in an urn"

dmillar — Wed, 31 Jan 2024 05:58:06 +0000

Early in my career, when I first started interviewing, I used to ask a version of this to recent grads. It was never a make-or-break question, but I found it to be a great way to a.) see how people approach problem solving and probability and b.) see how they respond when you start asking whys (even if they answered/guessed 1/3). It's something that takes zero code to answer, and the intuition is easy to grok once explained.

The other part I particularly enjoyed was the people who initially guessed wrong, but then got to the answer intuitively almost always sent me code proving the answer.

For the record, my question was: "Two points are randomly and uniformly selected on a line 0.0 to 1.0. What is the most probable distance between the two points?"