https://www.justus.pw/Recent posts on Justus Perlwitzen-usSun, 06 Sep 2026 05:36:42 +0000https://www.justus.pw/writeups/pctf-2024/giraffe-notes.htmlSun, 06 Sep 2026 05:35:00 +0000https://www.justus.pw/writeups/pctf-2024/giraffe-notes.htmlhttps://www.justus.pw/writeups/pctf-2024/secret-door.htmlHere's my writeup for the PatriotCTF 2024 Secret Door challenge.Sat, 05 Sep 2026 11:11:55 +0000https://www.justus.pw/writeups/pctf-2024/secret-door.htmlhttps://www.justus.pw/posts/qwen36-has-an-existential-crisis.htmlI'm quite happy refactoring code from time to time with Qwen3.6-35B-A3B , specifically the Unsloth quantized UD-Q5_K_M version.Thu, 03 Sep 2026 01:20:43 +0000https://www.justus.pw/posts/qwen36-has-an-existential-crisis.htmlhttps://www.justus.pw/koriander/publish-your-koriander-blog-aws-s3-cloudfront.htmlIn this tutorial, we'll walk through all the steps needed to set up your own Koriander CMS blog on Amazon S3 and CloudFront .Sun, 30 Aug 2026 01:11:09 +0000https://www.justus.pw/koriander/publish-your-koriander-blog-aws-s3-cloudfront.htmlhttps://www.justus.pw/posts/2026-08-28-fix-unknown-compression-format-error-when-installing-j.htmlHere's how to fix the following error when installing J and JQt .Fri, 28 Aug 2026 00:28:46 +0000https://www.justus.pw/posts/2026-08-28-fix-unknown-compression-format-error-when-installing-j.htmlhttps://www.justus.pw/writeups/pctf-2024/patriotctf-2024-impersonate-writeup.htmlHere's my writeup for the PatriotCTF 2024 Impersonate challenge.Thu, 27 Aug 2026 08:41:00 +0000https://www.justus.pw/writeups/pctf-2024/patriotctf-2024-impersonate-writeup.htmlhttps://www.justus.pw/garden/etc-devices.htmlThis page contains notes on my small collection of ETC devices.Thu, 27 Aug 2026 03:00:17 +0000https://www.justus.pw/garden/etc-devices.htmlhttps://www.justus.pw/writeups/pctf-2024/dogdays.htmlThis page contains my writeup for the PatriotCTF 2024 Dogdays challenge.Wed, 26 Aug 2026 00:00:00 +0000https://www.justus.pw/writeups/pctf-2024/dogdays.htmlhttps://www.justus.pw/posts/2026-07-29-generate-nix-cache.htmlHere's how to create a Nix binary cache from a derivation's closure within a Nix derivation. Since you can't run nix commands within derivations, this can be useful for including a build closure within an installation medium, such as when performing a NixOS offline installation.Wed, 29 Jul 2026 01:06:44 +0000https://www.justus.pw/posts/2026-07-29-generate-nix-cache.htmlhttps://www.justus.pw/posts/2026-07-28-how-to-use-your-japanese-bank-account-while-extending-your-visa.htmlI'm currently renewing my visa (residence permit, 在留許可) in Japan. While I've submitted my application 3 months ahead of its expiry, the Immigration Services Agency (出入国在留管理庁) appears to be overwhelmed with applications.Tue, 28 Jul 2026 02:52:31 +0000https://www.justus.pw/posts/2026-07-28-how-to-use-your-japanese-bank-account-while-extending-your-visa.htmlhttps://www.justus.pw/posts/2026-07-27-can-ublock-origin-block-webrtc.htmlDo you loathe online banking as much as I do? Does your bank make online banking more cumbersome each week in the name of "combating fraud" and "staying compliant" with anti-money laundering and counter terrorist financing laws? Have you ever looked under online banking's hood? Here's an example from a bank that I use in Japan to pay for life necessities and to keep a roof over my head.Mon, 27 Jul 2026 02:50:27 +0000https://www.justus.pw/posts/2026-07-27-can-ublock-origin-block-webrtc.htmlhttps://www.justus.pw/posts/2026-07-04-pytest-errors-to-vim-quickfix.htmlHere's how you can use the Vim and Neovim QuickFix feature to conveniently jump between pytest errors without leaving your editor.Sat, 25 Jul 2026 13:15:27 +0000https://www.justus.pw/posts/2026-07-04-pytest-errors-to-vim-quickfix.htmlhttps://www.justus.pw/koriander/koriander-cms-roadmap.htmlThis page contains features and fixes that I'm planning to implement for Koriander CMSSat, 25 Jul 2026 12:54:32 +0000https://www.justus.pw/koriander/koriander-cms-roadmap.htmlhttps://www.justus.pw/posts/2026-07-01-sita-goromo.htmlFour Chinese characters that I regularly confuse have a 衣 radical at the bottom (ja: したごろも).Wed, 01 Jul 2026 00:42:58 +0000https://www.justus.pw/posts/2026-07-01-sita-goromo.htmlhttps://www.justus.pw/koriander/create-your-first-koriander-cms-site.htmlHere's how to make your first site in Koriander CMS.Tue, 30 Jun 2026 09:33:51 +0000https://www.justus.pw/koriander/create-your-first-koriander-cms-site.html