<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: jmccarthy</title><link>https://news.ycombinator.com/user?id=jmccarthy</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Tue, 21 Apr 2026 18:03:42 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=jmccarthy" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by jmccarthy in "Ask HN: Who is hiring? (October 2025)"]]></title><description><![CDATA[
<p>StrongDM | [Staff, Senior, Junior] AI Agent Engineer | San Francisco Bay Area (Palo Alto) | Full-Time | ONSITE | SW3.0<p>StrongDM applies deep tech to hard problems for demanding cybersecurity customers. Our embrace of large language models continues that tradition, achieving useful and reliable outputs from ambiguous and non-deterministic inputs.<p>Join me (Justin, co-founder & CTO) and our AI Agent team to help our global customers secure their most critical systems.<p>Ideally: if you've already decided you need to be working on the frontier of this technology wave & you're open to doing so in person at a physical whiteboard, e-mail me a few words to that effect (justin@strongdm.com).<p>Optionally: read more at <a href="http://strongdm.com/careers" rel="nofollow">http://strongdm.com/careers</a><p>Finally: on a personal note - a mix of awe, ambition, anxiety, and confusion are inevitable at this moment. Our small team has found a flow, and we're successfully metabolizing the daily changes in the gradient. Come on a run with us; see what we see.</p>
]]></description><pubDate>Wed, 01 Oct 2025 20:00:54 +0000</pubDate><link>https://news.ycombinator.com/item?id=45442642</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=45442642</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45442642</guid></item><item><title><![CDATA[New comment by jmccarthy in "Ask HN: Who is hiring? (August 2025)"]]></title><description><![CDATA[
<p>StrongDM | [Staff, Senior, Junior] AI Agent Engineer | San Francisco Bay Area (Palo Alto) | Full-Time | ONSITE<p>StrongDM applies deep tech to hard problems for demanding cybersecurity customers. Our embrace of large language models continues that tradition, achieving useful and reliable outputs from ambiguous and non-deterministic inputs.<p>Join me (Justin, co-founder & CTO) and our newly-formed AI Agent team to help our global customers secure their most critical systems.<p>Ideally: if you've already decided you need to be working on the edge of this technology wave & you're open to doing so in person at a physical whiteboard, e-mail me a few words to that effect (justin@strongdm.com).<p>Optionally: read more at <a href="http://strongdm.com/careers" rel="nofollow">http://strongdm.com/careers</a></p>
]]></description><pubDate>Fri, 01 Aug 2025 18:29:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=44760576</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=44760576</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44760576</guid></item><item><title><![CDATA[New comment by jmccarthy in "Ask HN: Who is hiring? (July 2025)"]]></title><description><![CDATA[
<p>StrongDM | [Staff, Senior, Junior] AI Agent Engineer | San Francisco Bay Area (Palo Alto) | Full-Time | ONSITE
StrongDM applies deep tech to hard problems for demanding cybersecurity customers. Our embrace of large language models continues that tradition, achieving useful and reliable outputs from ambiguous and non-deterministic inputs.<p>Join me (Justin, co-founder & CTO) and our newly-formed AI Agent team to help our global customers secure their most critical systems.<p>Ideally: if you've already decided you need to be working on the edge of this technology wave & you're open to doing so in person at a physical whiteboard, e-mail me a few words to that effect (justin@strongdm.com).<p>Optionally: read more at <a href="http://strongdm.com/careers" rel="nofollow">http://strongdm.com/careers</a></p>
]]></description><pubDate>Tue, 01 Jul 2025 19:43:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=44437361</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=44437361</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44437361</guid></item><item><title><![CDATA[New comment by jmccarthy in "Autonomous drone defeats human champions in racing first"]]></title><description><![CDATA[
<p>very prompt burrito delivery?</p>
]]></description><pubDate>Wed, 04 Jun 2025 20:51:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=44185395</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=44185395</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44185395</guid></item><item><title><![CDATA[New comment by jmccarthy in "Ask HN: Who is hiring? (June 2025)"]]></title><description><![CDATA[
<p>StrongDM | [Staff, Senior, Junior] AI Agent Engineer | San Francisco Bay Area (Palo Alto) | Full-Time | ONSITE<p>StrongDM applies deep tech to hard problems for demanding cybersecurity customers. Our embrace of large language models continues that tradition, achieving useful and reliable outputs from ambiguous and non-deterministic inputs.<p>Join me (Justin, co-founder & CTO) and our newly-formed AI Agent team to help our global customers secure their most critical systems.<p>Ideally: if you've already decided you need to be working on the edge of this technology wave & you're open to doing so in person at a physical whiteboard, e-mail me a few words to that effect (justin@strongdm.com).<p>Optionally: read more at <a href="http://strongdm.com/careers" rel="nofollow">http://strongdm.com/careers</a></p>
]]></description><pubDate>Mon, 02 Jun 2025 17:40:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=44161231</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=44161231</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44161231</guid></item><item><title><![CDATA[New comment by jmccarthy in "Systems Correctness Practices at AWS: Leveraging Formal and Semi-Formal Methods"]]></title><description><![CDATA[
<p><a href="https://aws.amazon.com/verified-permissions/" rel="nofollow">https://aws.amazon.com/verified-permissions/</a> (AVP) is a team and product which uses the formally verified Cedar language. <a href="https://arxiv.org/abs/2403.04651" rel="nofollow">https://arxiv.org/abs/2403.04651</a></p>
]]></description><pubDate>Tue, 01 Apr 2025 23:23:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=43552340</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=43552340</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43552340</guid></item><item><title><![CDATA[New comment by jmccarthy in "Trae: An AI Powered IDE by ByteDance"]]></title><description><![CDATA[
<p>0:01.39 /Applications/Trae.app/Contents/MacOS/Electron</p>
]]></description><pubDate>Thu, 23 Jan 2025 02:24:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=42799943</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=42799943</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42799943</guid></item><item><title><![CDATA[New comment by jmccarthy in "Show HN: I built an open-source data pipeline tool in Go"]]></title><description><![CDATA[
<p>Burak - one wish I've had recently is for a "py data ecosystem compiler", specifically one which allows me to express structures and transformations in dbt and Ibis, but not rely on Python at runtime. [Go|Rust]+[DuckDB|chDB|DataFusion] for the runtime. Bruin seems very close to the mark! Following.</p>
]]></description><pubDate>Tue, 17 Dec 2024 19:38:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=42444490</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=42444490</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42444490</guid></item><item><title><![CDATA[New comment by jmccarthy in "OpenAI slashes the cost of using its AI with a "mini" model"]]></title><description><![CDATA[
<p>Sonnet is great, but also suggest exploiting custom instructions in the ChatGPT UI. Here's a snippet from mine:<p>Extremely concise, formal. As short as possible. Assume I am an industry expert in any topic we discuss. Answer assuming I have the highest level of intellect possible, and do not require explication regardless of the sophistication of the topic. In cases where one approach among many is superior, offer an opinionated argument in favor of that approach.</p>
]]></description><pubDate>Thu, 18 Jul 2024 18:23:35 +0000</pubDate><link>https://news.ycombinator.com/item?id=40998371</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=40998371</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40998371</guid></item><item><title><![CDATA[New comment by jmccarthy in "Liu Cixin's War of the Worlds (2019)"]]></title><description><![CDATA[
<p>I also finished Death's End this morning and have a similar afterglow re: scale (energy, space, time)!</p>
]]></description><pubDate>Mon, 29 Apr 2024 20:17:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=40203604</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=40203604</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40203604</guid></item><item><title><![CDATA[New comment by jmccarthy in "Ask HN: 9-yo son wants to build a game, I'm lost. What can I do?"]]></title><description><![CDATA[
<p>I've built a few games with my son over the years. The fun part for us was all about fast iteration, and then laughing at the bugs together.<p>There are some other recommendations here for how to approach 3d, and he is specifically asking for 3d -- but I want to put in one more pitch for 2d: the fun-to-tedium ratio can be much higher.<p>I wonder if you could spend some time prototyping some of his ideas in LÖVE <a href="https://love2d.org/" rel="nofollow">https://love2d.org/</a> -- if you show him the smallest sketch of something working, he might have an idea about what to add next.<p>Many years ago, on a flight, we went from 0 to game before we landed (with no experience) using LÖVE.</p>
]]></description><pubDate>Thu, 18 Jan 2024 05:25:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=39038228</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=39038228</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39038228</guid></item><item><title><![CDATA[New comment by jmccarthy in "ChatGPT with voice is now available to all free users"]]></title><description><![CDATA[
<p>On a computer, I'd paste in a corpus of some sort as a regular ChatGPT message - just because it's easier to accumulate a big string. Note with GPT4 Turbo and the recent UI upgrades, the context window is so large now that you can paste a sizable body of knowledge, possibly even as an attached file.<p>I'd then switch to the phone and retrieve the chat from History.<p>Here's an example prompt I just used to help my son prepare for a DMV written test:<p>```
I'm going to paste a large list of questions and answers and then switch to voice mode. Once I indicate that I'm ready, begin quizzing me on these questions. Feel free to rephrase slightly. My goal is to achieve complete retention of all of these questions through quizzing and spaced repetition. The questions are California DMV questions. I am preparing to take the written test.
1. *Q:* You may drive off of the paved roadway to pass another vehicle.  
   *A:* Under no circumstances.<p>2. *Q:* You are approaching a railroad crossing with no warning devices and are unable to see 400 feet down the tracks in one direction. The speed limit is...  
   *A:* 15 mph.
...
```</p>
]]></description><pubDate>Sun, 26 Nov 2023 21:40:27 +0000</pubDate><link>https://news.ycombinator.com/item?id=38425263</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=38425263</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38425263</guid></item><item><title><![CDATA[New comment by jmccarthy in "ChatGPT with voice is now available to all free users"]]></title><description><![CDATA[
<p>While walking the dog today, it talked me through some trade-offs between DBSCAN and isolation forests. Walking + verbalizing the problem is a very different and positive experience for me.<p>I've also used it several times on ~15-20min drives to memorize something I wanted to have available for immediate recall. I had it chunk & quiz me, and by the end of the drive I had it down pat. Fun use of drive time.</p>
]]></description><pubDate>Wed, 22 Nov 2023 04:00:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=38374603</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=38374603</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38374603</guid></item><item><title><![CDATA[New comment by jmccarthy in "Ask HN: Show me your half baked project"]]></title><description><![CDATA[
<p><a href="https://www.youtube.com/watch?v=9w1DDwnFWLM">https://www.youtube.com/watch?v=9w1DDwnFWLM</a><p>QR-powered home organization app! My family and friends use it constantly, but I never polished or promoted it further than that video :) If you're organizing your garage/shed/projects bench and want to give it a try, I'm happy to mail you a big stack of stickers!</p>
]]></description><pubDate>Fri, 13 Oct 2023 00:30:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=37864985</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=37864985</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=37864985</guid></item><item><title><![CDATA[New comment by jmccarthy in "Pgroll: zero-downtime, reversible schema migrations for Postgres"]]></title><description><![CDATA[
<p>Thank you for the project! I did a brief scan for an explanation of the PG 14+ version constraint. Which 14-specific features are you relying on?</p>
]]></description><pubDate>Tue, 03 Oct 2023 17:21:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=37754843</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=37754843</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=37754843</guid></item><item><title><![CDATA[New comment by jmccarthy in "Hard stuff when building products with LLMs"]]></title><description><![CDATA[
<p>Could be we're in a (short?) interregnum analogous to pre-Rails Ruby: there are lots of nascent frameworks, but the dominant one hasn't been born yet. FWIW - DIY is working well for me.</p>
]]></description><pubDate>Sat, 27 May 2023 22:28:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=36099031</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=36099031</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=36099031</guid></item><item><title><![CDATA[New comment by jmccarthy in "Hard stuff when building products with LLMs"]]></title><description><![CDATA[
<p>Very nice, thank you! Will give it a try.</p>
]]></description><pubDate>Sat, 27 May 2023 22:20:40 +0000</pubDate><link>https://news.ycombinator.com/item?id=36098966</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=36098966</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=36098966</guid></item><item><title><![CDATA[New comment by jmccarthy in "So this guy is now S3. All of S3"]]></title><description><![CDATA[
<p>And later, how the semi became the dot: <a href="https://mailarchive.ietf.org/arch/msg/apps-discuss/j6KWTSTVCkGJBquAcEEXxzoRraQ/" rel="nofollow">https://mailarchive.ietf.org/arch/msg/apps-discuss/j6KWTSTVC...</a><p>Fun bit of history!</p>
]]></description><pubDate>Thu, 04 May 2023 22:01:01 +0000</pubDate><link>https://news.ycombinator.com/item?id=35822711</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=35822711</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=35822711</guid></item><item><title><![CDATA[New comment by jmccarthy in "Introducing ChatGPT and Whisper APIs"]]></title><description><![CDATA[
<p>I recently tried a number of options for streaming STT. Because my use case was very sensitive to latency, I ultimately went with <a href="https://deepgram.com/" rel="nofollow">https://deepgram.com/</a> - but <a href="https://github.com/ggerganov/whisper.cpp">https://github.com/ggerganov/whisper.cpp</a> provided a great stepping stone while prototyping a streaming use case locally on a laptop.</p>
]]></description><pubDate>Wed, 01 Mar 2023 22:12:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=34989065</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=34989065</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=34989065</guid></item><item><title><![CDATA[New comment by jmccarthy in "The Steve Jobs Archive"]]></title><description><![CDATA[
<p>Looks official! Launched by family & friends: <a href="https://www.theverge.com/2022/9/7/23342222/steve-jobs-archive-website-launch" rel="nofollow">https://www.theverge.com/2022/9/7/23342222/steve-jobs-archiv...</a></p>
]]></description><pubDate>Thu, 08 Sep 2022 04:37:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=32761226</link><dc:creator>jmccarthy</dc:creator><comments>https://news.ycombinator.com/item?id=32761226</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32761226</guid></item></channel></rss>