<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: juancn</title><link>https://news.ycombinator.com/user?id=juancn</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 27 May 2026 18:47:13 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=juancn" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by juancn in "The VibeSec Reckoning"]]></title><description><![CDATA[
<p>It's not just the prompting to avoid issues, you also need to make the AI take an adversarial role and generate a feedback loop.</p>
]]></description><pubDate>Wed, 27 May 2026 15:51:10 +0000</pubDate><link>https://news.ycombinator.com/item?id=48296097</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48296097</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48296097</guid></item><item><title><![CDATA[New comment by juancn in "Uber president says AI spending is getting 'harder to justify'"]]></title><description><![CDATA[
<p>There's also the issue that in any large-ish org, code production is hardly ever the bottleneck.</p>
]]></description><pubDate>Tue, 26 May 2026 16:01:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=48281550</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48281550</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48281550</guid></item><item><title><![CDATA[New comment by juancn in "Shipping a laptop to a refugee camp in Uganda"]]></title><description><![CDATA[
<p>It's pretty much like trying to get something shipped to Argentina, a royal pain in the ass.<p>The laptop would pay a 50% fee over the (declared value + shipping cost).
Couriers will mostly deal with that on send, but if sent through regular mail you need to declare and pay before you get it.<p>If you didn't include your tax number as part of the address (doesn't matter in which field), there's a non-zero chance that the package will be lost, held indefinitely or returned to sender.<p>It's great that there are people willing to help even in these conditions.</p>
]]></description><pubDate>Sat, 23 May 2026 01:55:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=48243775</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48243775</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48243775</guid></item><item><title><![CDATA[New comment by juancn in "Indexing a year of video locally on a 2021 MacBook with Gemma4-31B (50GB swap)"]]></title><description><![CDATA[
<p>Prefill is around ~600 t/s.<p>I don't remember what the 27B was, I tried a 27B with different quantization at some point for that one, but I settled on the 31B.</p>
]]></description><pubDate>Sat, 23 May 2026 01:45:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=48243717</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48243717</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48243717</guid></item><item><title><![CDATA[New comment by juancn in "How to convert between wealth and income tax"]]></title><description><![CDATA[
<p>There's a secondary side effect of wealth taxes: they redirect investments (I'm Argentinian and we have wealth taxes).<p>Investments shift to things whose tax value updates slowly, for example property which typically adjusted more slowly than other financial assets. This tends to rise property prices and concentrate ownership.<p>It causes other distortions in allocation depending on the tax details, but wealthy people tend to adjust more aggressively to changing conditions.</p>
]]></description><pubDate>Fri, 22 May 2026 16:58:14 +0000</pubDate><link>https://news.ycombinator.com/item?id=48238490</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48238490</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48238490</guid></item><item><title><![CDATA[New comment by juancn in "Indexing a year of video locally on a 2021 MacBook with Gemma4-31B (50GB swap)"]]></title><description><![CDATA[
<p>I'm running unsloth/Qwen3.6-35B-A3B-UD-Q8_K_XL on an M3 Max, 64GB at ~57 t/s with llama-server</p>
]]></description><pubDate>Thu, 21 May 2026 16:29:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=48225398</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48225398</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48225398</guid></item><item><title><![CDATA[New comment by juancn in "Reimagining the mouse pointer for the AI era"]]></title><description><![CDATA[
<p>Please don't.<p>I like text selection exactly how it is. I want precise controls.<p>It's fine for a touch interface like a phone, but on a computer I expect precision. As much as I can get.</p>
]]></description><pubDate>Tue, 12 May 2026 19:27:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=48113205</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48113205</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48113205</guid></item><item><title><![CDATA[New comment by juancn in "Don't hijack my mouse pointer"]]></title><description><![CDATA[
<p>Ohh you also made me think of those forms that disable paste!</p>
]]></description><pubDate>Tue, 12 May 2026 15:18:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=48109598</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48109598</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48109598</guid></item><item><title><![CDATA[New comment by juancn in "Don't hijack my mouse pointer"]]></title><description><![CDATA[
<p>My other pet peeve is sites that override text selection and add a popup or something.<p>I select long text when I'm reading, I use it for focus and to keep track where I was if I need to switch to some other task in the middle.<p>In general, excessive customization is a net negative if it breaks expectations.</p>
]]></description><pubDate>Tue, 12 May 2026 13:43:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=48108187</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48108187</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48108187</guid></item><item><title><![CDATA[New comment by juancn in "An Introduction to Meshtastic"]]></title><description><![CDATA[
<p>Yeah, I was expecting something fancier than flood routing.<p>Perhaps a per node hash of known recent routes to avoid flooding every single time and using flooding as a backup.</p>
]]></description><pubDate>Fri, 08 May 2026 14:50:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=48064068</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48064068</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48064068</guid></item><item><title><![CDATA[New comment by juancn in "Nintendo announces price increases for Nintendo Switch 2"]]></title><description><![CDATA[
<p>Nintendo is almost on a different market than Steam, XBox, and all the others.<p>I don't think it will matter much. They live off the exclusives.</p>
]]></description><pubDate>Fri, 08 May 2026 14:44:39 +0000</pubDate><link>https://news.ycombinator.com/item?id=48063993</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48063993</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48063993</guid></item><item><title><![CDATA[New comment by juancn in "Ask HN: We just had an actual UUID v4 collision..."]]></title><description><![CDATA[
<p>Something off on how the RNG is initialized? 
Lack of entropy?<p>If the rng is not customized it will use:<p><pre><code>    const rnds8 = new Uint8Array(16);
    export default function rng() {
        return crypto.getRandomValues(rnds8);
    }
</code></pre>
getRandomValues doesn't specify a minimum amount of entropy.</p>
]]></description><pubDate>Fri, 08 May 2026 13:52:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=48063144</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48063144</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48063144</guid></item><item><title><![CDATA[New comment by juancn in "An Introduction to Meshtastic"]]></title><description><![CDATA[
<p>I find it weird that the hop limit is 3 bits, wouldn't that limit the effective range a lot?<p>Unless an intermediate node lies and doesn't decrement and retransmits anyway.</p>
]]></description><pubDate>Fri, 08 May 2026 13:41:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=48063008</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48063008</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48063008</guid></item><item><title><![CDATA[New comment by juancn in "Am I Meant to Be Impressed?"]]></title><description><![CDATA[
<p>This is pure speculation on my part, but the way I think this will play out is something like this:<p><pre><code>    - current CapEx will make the production side increase capacity
    - advances in TPUs, NPUs, open weight and quantization will keep going at a rapid pace
    - when the spending slows/stops, hardware prices will drop, hard
    - most AI workloads will move to the edge (except frontier models) because the hardware is cheaper than a subscription
</code></pre>
(and at some point there could be a crash like 2008)<p>For example, most of my AI use lately has been running Qwen3.6-35B-A3B-UD-Q8_K_XL on a 64GB MacBook Pro with an M3 Max. It runs at ~57 tokens/s and it's mostly fine.<p>I do use the frontier models a bit, but only when the task is too complex for the local model.<p>Basic crap, like analyzing an existing codebase and bouncing ideas, making small changes, the local model is enough.</p>
]]></description><pubDate>Wed, 06 May 2026 18:56:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=48040139</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48040139</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48040139</guid></item><item><title><![CDATA[New comment by juancn in "Appearing productive in the workplace"]]></title><description><![CDATA[
<p>AI can be (and often is) a confident incompetence amplifier.</p>
]]></description><pubDate>Wed, 06 May 2026 17:28:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=48038940</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=48038940</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48038940</guid></item><item><title><![CDATA[New comment by juancn in "He asked AI to count carbs 27000 times. It couldn't give the same answer twice"]]></title><description><![CDATA[
<p>Does this surprise anyone?<p>I mean these models are inherently probabilistic.<p>If you run enough samples you'll get results matching the learned probability distribution, the more you sample the higher the chances that you'll land on an unlikely response.</p>
]]></description><pubDate>Wed, 29 Apr 2026 13:59:09 +0000</pubDate><link>https://news.ycombinator.com/item?id=47948578</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=47948578</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47948578</guid></item><item><title><![CDATA[New comment by juancn in "Startups brag they spend more money on AI than human employees"]]></title><description><![CDATA[
<p>I think eventually local AI models will win out. At least locally hosted.</p>
]]></description><pubDate>Thu, 23 Apr 2026 14:53:56 +0000</pubDate><link>https://news.ycombinator.com/item?id=47876465</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=47876465</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47876465</guid></item><item><title><![CDATA[New comment by juancn in "Arch Linux Now Has a Bit-for-Bit Reproducible Docker Image"]]></title><description><![CDATA[
<p>Here's a koan:<p>You meet a vegan crossfitter that uses Arch, what does it tell you about first?</p>
]]></description><pubDate>Thu, 23 Apr 2026 14:28:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=47876171</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=47876171</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47876171</guid></item><item><title><![CDATA[New comment by juancn in "Startups brag they spend more money on AI than human employees"]]></title><description><![CDATA[
<p>Never outsource your core competency.<p>That reliance on third-party AI is a huge risk, just saying.</p>
]]></description><pubDate>Wed, 22 Apr 2026 17:41:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=47866788</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=47866788</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47866788</guid></item><item><title><![CDATA[New comment by juancn in "The eighth-generation TPU: An architecture deep dive"]]></title><description><![CDATA[
<p>Super interesting but it's so damn hard to find any detail.<p>I would love to see an instruction set reference for one of these, all you have is hardware architectural diagrams or high level APIs.</p>
]]></description><pubDate>Wed, 22 Apr 2026 15:14:43 +0000</pubDate><link>https://news.ycombinator.com/item?id=47864804</link><dc:creator>juancn</dc:creator><comments>https://news.ycombinator.com/item?id=47864804</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47864804</guid></item></channel></rss>