2025-07-31 front | Hacker News

Stories from July 31, 2025

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31.		Sumo – Simulation of Urban Mobility (eclipse.dev)
		154 points by Stevvo on July 28, 2025 \| 30 comments
32.		So you're a manager now (scottkosman.com)
		260 points by mooreds on July 31, 2025 \| 185 comments
33.		U.S. senators introduce new pirate site blocking bill, "Block BEARD" (torrentfreak.com)
		267 points by HieronymusBosch on July 31, 2025 \| 247 comments
34.		GEPA: Reflective prompt evolution can outperform reinforcement learning (arxiviq.substack.com)
		92 points by che_shr_cat on July 31, 2025 \| 25 comments
35.		Dark patterns (nsw.gov.au)
		124 points by ColinWright on July 31, 2025 \| 58 comments
36.		Show HN: AgentGuard – Auto-kill AI agents before they burn through your budget (github.com/dipampaul17)
		47 points by dipampaul17 on July 31, 2025 \| 26 comments
37.		Tracking source locations in the Futhark compiler (futhark-lang.org)
		43 points by jmillikin on July 31, 2025
38.		Friction and Not Being Touched (tante.cc)
		56 points by colinprince on July 31, 2025 \| 14 comments
39.		Ferrari Status (collabfund.com)
		75 points by surprisetalk on July 28, 2025 \| 101 comments
40.		Following Up on the Python JIT (lwn.net)
		95 points by Bogdanp on July 28, 2025 \| 56 comments
41.		Show HN: Open-source physical rack-mounted GUI for home lab (getubo.com)
		42 points by mmajzoobi on July 27, 2025 \| 3 comments
42.		Hawley and Democrats vote to advance congressional stock trading ban (cbsnews.com)
		191 points by hhs on July 31, 2025 \| 182 comments
43.		Ursa: A leaderless, object storage–based alternative to Kafka (streamnative.io)
		98 points by netpaladinx on July 31, 2025 \| 37 comments
44.		Open source BOM management (for me) (vincentuden.xyz)
		29 points by vincent-uden on July 27, 2025 \| 7 comments
45.		Ferroelectric helps break transistor limits (ieee.org)
		35 points by jnord on July 28, 2025 \| 6 comments
46.		Go’s race detector has a mutex blind spot (doublefree.dev)
		79 points by GarethX on July 29, 2025 \| 57 comments
47.		A Quantum Gravimeter for GPS Backup (ieee.org)
		44 points by purpleko on July 29, 2025 \| 34 comments
48.		Kaleidos – A portable nuclear microreactor that replaces diesel generators (radiantnuclear.com)
		117 points by sparrish on July 31, 2025 \| 179 comments
49.		Astronomical Telescope “Hadley” – an easy assembly, high performance Newtonian (printables.com)
		56 points by yehoshuapw on July 31, 2025 \| 7 comments
50.		How to trigger a command on Linux when power switches from AC to battery (dataswamp.org)
		81 points by Mr_Minderbinder on July 31, 2025 \| 44 comments
51.		Pentagon Pizza Index (pizzint.watch)
		101 points by exiguus on July 30, 2025 \| 48 comments
52.		Microsoft became incompetent in IT (mikekaganski.wordpress.com)
		214 points by doener on July 31, 2025 \| 152 comments
53.		Orion Browser (kagi.com)
		119 points by gtirloni on July 31, 2025 \| 98 comments
54.		The Chrome Speculation Rules API allows the browser to preload and prerender (docuseal.com)
		104 points by amadeuspagel on July 31, 2025 \| 80 comments
55.		Benchmarks in CI: Escaping the Cloud Chaos (codspeed.io)
		21 points by adriencaccia on July 31, 2025 \| 6 comments
56.		Profiling without Source code – how I diagnosed Trackmania stuttering (larstofus.com)
		49 points by ibobev on July 27, 2025 \| 6 comments
57.		Go Assembly Mutation Testing (filippo.io)
		40 points by Metalnem on July 31, 2025 \| 3 comments
58.		Altima NSX (computeradsfromthepast.substack.com)
		25 points by rbanffy on July 31, 2025 \| 14 comments
59.		Crafting your own Static Site Generator using Phoenix (2023) (fly.io)
		29 points by Bogdanp on July 31, 2025 \| 4 comments
60.		Magentic-UI: Towards Human-in-the-Loop Agentic Systems (arxiv.org)
		38 points by fitzn on July 31, 2025 \| 9 comments
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