2026-04-16T01:29:25Z https://yabu.me raboof https://yabu.me/npub19peuy69dxyn2vx8c8lqnr0ecuw8mrd6krxunsj7c69kd8w0kjhtqpw8hz3 https://assets.merveilles.town/accounts/avatars/000/104/220/original/f4f97441c1d6e466.png https://assets.merveilles.town/accounts/avatars/000/104/220/original/f4f97441c1d6e466.png https://yabu.me/nevent1qqsq82fye69n64qxgmcgzwl925ez7vmcp3y75axnkrddehwa8u2sangzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762av5g6chk In reply to <a href='/nevent1qqsyxhyw0guh5uw7geswnhk4lqkscdtyx9qa875fml5d2td8z740c9qvdsqsx'>nevent1q…sqsx</a><br/>_________________________<br/><br/>wait I thought the two mechanisms were aligned for 2025 and 2026 (except for Sunday) - is there a third mechanism? 2025-12-29T12:18:07Z https://yabu.me/nevent1qqs80l4ydxg5ws5fcd28zurxuuctqcup8ntlpcxc57ytcshdmp3aa2qzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762av9hlamt Welcome to week 1 of 2026!<br/><br/>What, week 1 of 2026 is in 2025? Yes: the &#34;first week of 2026&#34; starts on the Monday of the first week that has at least 4 days that fall in 2026, AKA the week with the first Thursday of the year.<br/><br/>Since years don&#39;t have an integer number of weeks, a &#34;weekyear&#34; has either 52 or 53 weeks - so you can say we have &#39;leap weeks&#39; sometimes. <br/><br/>This is all laid out in ISO8601:<br/><a href="https://en.wikipedia.org/wiki/ISO_week_date">https://en.wikipedia.org/wiki/ISO_week_date</a><br/><br/>However, the nice thing about standards is that there&#39;s so many to choose from. Yes, there are also people who count differently. The Java docs for their utility classes to count weeks cheekily claims &#34;the common definition&#34; is one where a week starts on Sunday (and week 1 is the first week where *any* day falls into the new year): <a href="https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/time/temporal/WeekFields.html#field-summary">https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/time/temporal/WeekFields.html#field-summary</a> . Do not believe their lies. 2025-12-29T10:16:15Z https://yabu.me/nevent1qqsyrudu7nmhaw7h7dxz259rhyzvvmw934jvz5ppc5wr52rhlf3e36szyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avxl8zk5 On the heels of the NixOS 25.11 release, I reproduced the minimal<br/>installation ISO again.<br/><br/>My approach is to take a NixOS VM from 2020, and then build the ISO (almost) without relying on the binary cache. This means it builds essentially all of the build-time dependencies and all of the items that make it into the ISO<br/>from source, without directly relying on Nix-specific prebuilt packages. On the other hand, NixOS is somewhat less strict than for example Debian in<br/>requiring package &#39;sources&#39; are actually sources, so a few builds (notably go) are actually &#39;built&#39; from upstream binary releases.<br/><br/>It&#39;s very satisfying to see such a long (albeit well-controlled) Rube Goldberg machine of builds results in a single hash that is identical to the one from the ISO you can download from the website.<br/><br/>Full write-up with all details at <a href="https://arnout.engelen.eu/blog/reproducing-nixos-25.11-minimal-iso/">https://arnout.engelen.eu/blog/reproducing-nixos-25.11-minimal-iso/</a><br/><br/>#NixOS #ReproducibleBuilds 2025-12-23T12:36:44Z https://yabu.me/nevent1qqszlr6yapkxwchn3kz53fjya4ztshaw8z6g3khr7s2m3f3ygytxwwqzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avu3txzg NixOS tests are pretty cool!<br/><br/>I&#39;ve been fixing an issue where, if you do a deployment to a remote machine (with &#39;nixos-rebuild switch --target-host=foo&#39;), and the connection would get broken off during the &#39;switch&#39;, the switch would be aborted - worst-case leading to that connection not getting restored.<br/><br/>I initially tested this manually, with the Raspberry Pi I encountered this problem with, which was elaborate and painful (especially when I got something wrong and the connection was lost). What&#39;s more, this would be useless to someone reviewing my code, as they don&#39;t have my pi sitting on their desk.<br/><br/>I now recreated the situation in a NixOS test, which spins up 2 VM&#39;s and exercises them with some Python code. Very smooth, and there&#39;s also an &#39;interactive&#39; mode where you get access to the Python REPL and the consoles of the QEMU VM&#39;s for manual inspection and manipulation.<br/><br/><a href="https://github.com/NixOS/nixpkgs/pull/463029">https://github.com/NixOS/nixpkgs/pull/463029</a><br/><br/>Also at <a href="https://arnout.engelen.eu/blog/nixos-tests/">https://arnout.engelen.eu/blog/nixos-tests/</a><br/><br/>#NixOS #RaspberryPi<br/> <img src="https://assets.merveilles.town/media_attachments/files/115/740/789/404/919/953/original/db81504eeb665ad7.png"> <br/> 2025-12-18T12:57:07Z https://yabu.me/nevent1qqs9h90tftmu5dvg982c26vztjfrpq3ca8v77u80p39u05ugpkp9muczyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762av088wsg In reply to <a href='/nevent1qqsg0aanrxf5c28d0qwqlng2p5sd7wsvhyp22efwn8am50ft2yjqwcc56473e'>nevent1q…473e</a><br/>_________________________<br/><br/>you select one<br/><br/>the votes are then first used to assign a number of &#39;seats&#39; to &#39;parties&#39; (there are 150 seats for 27 parties, some more serious than others). Which exact person you voted on then determines how the seats assigned to that party are filled. 2025-10-29T12:35:08Z https://yabu.me/nevent1qqsrx7rc8rju259vee5x24qq3fzwtgmccegfv8t7emz8hduhcyzhdeszyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avswad74 In reply to <a href='/nevent1qqsprcys05742hwavn6spx66mlkmr8smwlu79u74e9clf2yr00jetasczarax'>nevent1q…arax</a><br/>_________________________<br/><br/>&#34;We will not charge you for the period in which our services were unavailable - and you&#39;ll thank us for it.&#34; 2025-10-20T10:41:04Z https://yabu.me/nevent1qqsymz95vdzk4yfw9wglt9wkgll64e2rwandj0cxm6uz6y9lkpwdehgzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avag87d0 Cool debugging story time!<br/><br/>A few months ago, I was writing an integration test for the Nextcloud integration with OnlyOffice, to be run in a NixOS QEMU virtual machine. Curiously, I saw corrupt filesystem reads interfering with the test. That was the start of a journey that eventually led me into the core internals of the Linux kernel.<br/><br/>The issue seemed to occur under very particular circumstances, and was I convinced it likely only affected a very limited set of users - but I was determined to get to the bottom of it. I added diagnostic logging, which confirmed the issue appeared to be inside the Linux kernel. Sadly, when I attached a debugger, all it showed was gibberish.<br/><br/>With this challenge top-of-mind I joined the <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1ux8clvzv6te9u9xpl3fegmjrkrf5e2ttnmr3xafljtvrumucknlspzhm28" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>why2025camp</span> (<span class="italic">npub1ux8…hm28</span>)</a></span> Dutch hacker camp, a great place to meet interesting people. Here I bumped into <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1t0g05573nfzptecrc0gnqkshqt78f0k5kx8rj3wrx5hy2shz9fxsjjr0cv" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Raito Bezarius</span> (<span class="italic">npub1t0g…r0cv</span>)</a></span> who pointed me to a thread on the Linux kernel &#39;regressions&#39; mailing list where several people were running into a suspiciously-similar problem.<br/><br/>Encouraged by the fact that the impact might be wider than I originally thought, I persevered and managed to get accurate insight from the debugger - revealing suspicious circumstances in the memory management data structures.<br/><br/>With the problem pinned down like this, I felt comfortable sharing my findings on the &#39;regressions&#39; list. What’s more, I could share not only my description of the situation, but an actually-working Nix configuration demonstrating it. With that, maintainer Dominique Martinet could reproduce the issue within hours and write a preliminary fix overnight.<br/><br/>What looked like a bug in an obscure corner of QEMU turned out to be a subtle issue in the Linux Kernel Memory subsystem that, had we not found it, may have caused countless hard-to-diagnose problems in the future. Happy we could nip it in the bud!<br/><br/>You can read the full story (with many more technical details!) on my blog at <a href="https://arnout.engelen.eu/blog/linux-kernel-adventure/">https://arnout.engelen.eu/blog/linux-kernel-adventure/</a><br/><br/>#linux #kernel #qemu #debugging #programming #nixos #OpenSource 2025-09-24T12:36:59Z https://yabu.me/nevent1qqsw9vfhdcma6rmcy2pcf6j44uqqq05yhatygvn5qm5ezyu0ckad0hszyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avjcaf8w In reply to <a href='/nevent1qqsvfqce8lzlr9ctw7c6vcx9wkq7tds5zgczg9m5uzagqhxf65yzcng8mphh7'>nevent1q…phh7</a><br/>_________________________<br/><br/>this being the internet in its GenAI phase I double-checked, but yeah, this is totally legit - only the color was added afterwards.<br/><br/>There&#39;s more at <a href="https://www.vintag.es/2020/01/soldiers-in-drag.html">https://www.vintag.es/2020/01/soldiers-in-drag.html</a> 2025-07-23T06:55:37Z https://yabu.me/nevent1qqsgvmplz8z9h700v87r9hqtwyzddut88j6rmr6jvy4f7f986gple6czyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avnkeup2 In reply to <a href='/nevent1qqsfe3vxcu97rnxcz7ny7hd6ayj0fqw8fyxu3watqqaza5q9cl9hv4gl06t4r'>nevent1q…6t4r</a><br/>_________________________<br/><br/>interesting... with which browser is that? 2025-03-01T10:26:20Z https://yabu.me/nevent1qqsplxwayj70xedz27qydhashplxm9xwnk7k575mekk38fvgmeahqfgzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avjp8vh4 This chair was in the weird limbo state where fixing it professionally is not worth it, but throwing it away would be a shame.<br/><br/>Amateur upholstery it is!<br/><br/>(replacing both the fabric and the padding, which was also well-worn. the fabric is actually fabric from an old couch that we disposed of last year, and had some sentimental value. WIP, some sewing still pending)<br/> <img src="https://assets.merveilles.town/media_attachments/files/114/069/700/642/846/650/original/3a9ee4e9a1ab1890.png"> <br/> <img src="https://assets.merveilles.town/media_attachments/files/114/069/705/485/733/886/original/344e56315ec0f7c7.png"> <br/> 2025-02-26T10:28:13Z https://yabu.me/nevent1qqs06rzp5ey6n5fyjz7f2ak34ry5l65ajstyvftvulvahaxxpxldu3gzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762av5gp008 Looking forward to NixCon in Berlin this weekend!<br/><br/>I&#39;ll be bringing a small rant to the first lightning talks block, Friday evening 😃 2024-10-23T11:30:58Z https://yabu.me/nevent1qqsqkxupf0grusq6adqv57j5qmns7qduk5rk5xyjknewzgy522glr0gzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avrkd28e I&#39;m not very into geospatial, but I love that the venue for <a href="https://foss4g.be/nl/">https://foss4g.be/nl/</a> is in Baarle #foss4g #foss4gbe #FOSS4GBENL<br/> <img src="https://assets.merveilles.town/media_attachments/files/113/196/915/410/048/062/original/1c09c100d8dae560.jpg"> <br/> 2024-09-25T07:08:58Z https://yabu.me/nevent1qqsr02zc9yjz8xctr8dck7ya4h39y00mv356na96pal4zm5lvjcmujgzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avs8330e In reply to <a href='/nevent1qqsrdvlv3ul4cwcedkuwlsy0z9ucl679ugsv8l7taxdltw8ttagn20qv29syh'>nevent1q…9syh</a><br/>_________________________<br/><br/>yeah - TBH I was somewhat concerned about coming off as condescending by unsolicitedly providing the alt text. I&#39;m glad I did. TIL there is some convention to use a &#39;Alt4Me&#39; hashtag to signal when you&#39;re happy to take alt text suggestions. 2024-09-02T13:17:09Z https://yabu.me/nevent1qqsf4ydzcanmgq9fky5ycng3aagnpr5vgrnt6d0x85c003fl783tmfczyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avhpgk4x In reply to <a href='/nevent1qqsvv9dkwlefpq7686fn89md2g2t5qu28cw7mr36zpa7pgejsjjmdzq0swpf6'>nevent1q…wpf6</a><br/>_________________________<br/><br/>happy to help!<br/><br/>And thanks for applying the alt: I try to practice &#34;no boost without alt&#34; but really wanted to boost this one :) 2024-09-02T12:29:22Z https://yabu.me/nevent1qqsxtv2wlcw7ysk5zamelcnuw9g45caxvfs2wxk6yf6u00tlk20y2mszyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avm7a6h2 In reply to <a href='/nevent1qqstnh7tg6jnk8wzd8v3zvdeevaqwrlv65ral23za9lwmf89qzm3q9qzlej3z'>nevent1q…ej3z</a><br/>_________________________<br/><br/>#Alt4You Margret Atwood standing in the background wearing large welders&#39; gloves holding a big futuristic-looking flame thrower, blasting an impressive blue-purple flame at a copy of &#34;The Handmaid&#39;s Tale&#34; stood up on a table in the foreground, unphased. 2024-09-02T11:01:01Z https://yabu.me/nevent1qqsqf2s57surzwgsnn2yprwc5ex36dfcyu8lmfjkpc5096xmzfqacpszyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avrjfnxj In reply to <a href='/nevent1qqsfm7l9g6ml5fxsqxa0wefnaxv6kt2gfrnkf0trk3zdn5nh27uj0xqtdfzv9'>nevent1q…fzv9</a><br/>_________________________<br/><br/>5.8 km (same route) now in 40:15 (i.e. 8.5kph) - still a far cry from my old baseline (~10k under the hour), but very happy about the progress! 2024-08-31T10:21:13Z https://yabu.me/nevent1qqsfm7l9g6ml5fxsqxa0wefnaxv6kt2gfrnkf0trk3zdn5nh27uj0xqzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avydwqrp In reply to <a href='/nevent1qqsz7etyqekq5ph6mg2fuvhzx22dw300wszcxkl3nrh3pftmvqr9escy9asdy'>nevent1q…asdy</a><br/>_________________________<br/><br/>5.8 km in 44:20 (i.e. 7.8kph) - getting longer(ish) but slower, if that&#39;s what my Achilles&#39; tendon needs then I&#39;m fine with it 😄 2024-08-24T09:08:19Z https://yabu.me/nevent1qqsz7etyqekq5ph6mg2fuvhzx22dw300wszcxkl3nrh3pftmvqr9esczyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762avwfspy5 In reply to <a href='/nevent1qqs2zf65cp2yw2muc94n6axuf9ms90g0sfz2rveqcpkpqxzppkmtnxqkuk7ud'>nevent1q…k7ud</a><br/>_________________________<br/><br/>5.66km in 40:40 (i.e. 8.2kph) - so far so good! 2024-08-18T09:10:28Z https://yabu.me/nevent1qqs2zf65cp2yw2muc94n6axuf9ms90g0sfz2rveqcpkpqxzppkmtnxqzyq588sng45cjdfsclqluzvdl8r3clvdh2cvmjwztmrgke5ae762av7wcwqu I strained my Achilles&#39; tendon ~2 years ago, and &#39;re-injured&#39; myself several times since by prematurely starting to run again.<br/><br/>So this is my attempt to resume again, slowly: 3.76 km in 28:28 (i.e. 7.9kph). OK so far, 🤞 it&#39;ll feel fine tomorrow. 2024-08-10T15:07:58Z