https://media.ccc.de/c/lixcon2026 This feed contains all events from lixcon2026 as opus see video outro Sun, 19 Apr 2026 14:04:34 -0000 https://static.media.ccc.de/media/events/lixcon/2026/logo.png https://media.ccc.de/c/lixcon2026 https://media.ccc.de/v/lixcon-2026-1-to-sleep-in-a-sea-of-tests-refactoring-a-testing-framework-from-hell Taking a look at the `functional` test suite, pointing out its concepts and flaws to then take a look at its successor `functional2` Many curses and screams of frustration has the functional test suite brought forth in many - if not all - lix developers. Hence people wanted a successor. In this session, we will talk about all the pain, impurities and falkeyness of the functional suite, look at the features and non-features of functional2, and the pain of migrating tests. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/KBFUXL/ Fri, 17 Apr 2026 14:15:00 +0200 https://cdn.media.ccc.de/events/lixcon/2026/opus/lixcon2026-1-eng-To_sleep_in_a_sea_of_Tests_Refactoring_a_testing_framework_from_hell_opus.opus?1776607010 dafe38a9-1feb-5273-90f2-5fc8ef102b62 2026-04-17T14:15:00+02:00 rootile No 1, 2026, lixcon2026, Amphitheater Dussane, lixcon2026-eng, Day 1 Taking a look at the `functional` test suite, pointing out its concepts and flaws to then take a look at its successor `functional2` Many curses and screams of frustration has the functional test suite brought forth in many - if not all - lix developers. Hence people wanted a successor. In this session, we will talk about all the pain, impurities and falkeyness of the functional suite, look at the features and non-features of functional2, and the pain of migrating tests. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/KBFUXL/ 00:16:58 https://media.ccc.de/v/lixcon-2026-4-regiux-prototyping-a-fast-nix-interpreter The Nix expression language is challenging to evaluate due to non-strict semantics, dynamic scoping, a diverse collection of builtin operators, and tight integration with the Nix store. We give a progress report on Regiux, an interpreter for Nix which is narrowly focused on efficient evaluation of expressions. Regiux is yet another attempt at a fast Nix evaluator. Come learn about the ingredients that go into modern compilers and interpreters, particularly: * Lexing and parsing * Desugaring and expanding * Intermediate languages for lambda calculus * Using the RPython JIT toolkit * Bytecode for lazy graph evaluation Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/F83VYV/ Fri, 17 Apr 2026 11:45:00 +0200 https://cdn.media.ccc.de/events/lixcon/2026/opus/lixcon2026-4-eng-Regiux_prototyping_a_fast_Nix_interpreter_opus.opus?1776606722 96146e73-9f8c-5b23-9a33-e22dedae57ea 2026-04-17T11:45:00+02:00 Corbin No 4, 2026, lixcon2026, Amphitheater Dussane, lixcon2026-eng, Day 1 The Nix expression language is challenging to evaluate due to non-strict semantics, dynamic scoping, a diverse collection of builtin operators, and tight integration with the Nix store. We give a progress report on Regiux, an interpreter for Nix which is narrowly focused on efficient evaluation of expressions. Regiux is yet another attempt at a fast Nix evaluator. Come learn about the ingredients that go into modern compilers and interpreters, particularly: * Lexing and parsing * Desugaring and expanding * Intermediate languages for lambda calculus * Using the RPython JIT toolkit * Bytecode for lazy graph evaluation Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/F83VYV/ 00:30:51 https://media.ccc.de/v/lixcon-2026-3-the-politics-of-language-design This talk is about Elpe, a mixture of ideas from Nix, Docker and Ubuntu/Debian/RHEL, with a strong focus on performance and security. I'll talk about the design choices I've made, and demo the thing and about how choices that may seem purely technical can have extreme political consequences. I'll also explain how such choices can have deep and lasting consequences on the dynamics of growing organisations. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/HVZTB9/ Fri, 17 Apr 2026 11:15:00 +0200 https://cdn.media.ccc.de/events/lixcon/2026/opus/lixcon2026-3-eng-The_politics_of_language_design_opus.opus?1776605526 d92f0715-b3ef-513e-b188-0f392ec59017 2026-04-17T11:15:00+02:00 Pierre-Étienne Meunier No 3, 2026, lixcon2026, Amphitheater Dussane, lixcon2026-eng, Day 1 This talk is about Elpe, a mixture of ideas from Nix, Docker and Ubuntu/Debian/RHEL, with a strong focus on performance and security. I'll talk about the design choices I've made, and demo the thing and about how choices that may seem purely technical can have extreme political consequences. I'll also explain how such choices can have deep and lasting consequences on the dynamics of growing organisations. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/HVZTB9/ 00:38:06 https://media.ccc.de/v/lixcon-2026-13-the-untapped-potential-of-lix-plugins Lix plugins — a feature so esoteric none yet remember their existence. What power could they hold? What secrets could they unlock? Let's discover together! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/PEDV9S/ Fri, 17 Apr 2026 10:45:00 +0200 https://cdn.media.ccc.de/events/lixcon/2026/opus/lixcon2026-13-eng-The_untapped_potential_of_Lix_plugins_opus.opus?1776604494 4f093efc-1c60-5d96-a861-e3f77747b156 2026-04-17T10:45:00+02:00 Qyriad No 13, 2026, lixcon2026, Amphitheater Dussane, lixcon2026-eng, Day 1 Lix plugins — a feature so esoteric none yet remember their existence. What power could they hold? What secrets could they unlock? Let's discover together! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/PEDV9S/ 00:21:14 https://media.ccc.de/v/lixcon-2026-8-botanix-a-nix-native-ci-in-a-forge-agnostic-world Botanix is a new CI software that targets a native nix integration as it builds derivations as its pipeline. It integrates natively with both Gerrit and Forgejo currently but its genericity allows for even more diversity in the future! This talk will present the genesis of the Botanix project, worked on by students from ENS de Lyon, its philosophy and inner workings. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/YZZKYT/ Fri, 17 Apr 2026 10:15:00 +0200 https://cdn.media.ccc.de/events/lixcon/2026/opus/lixcon2026-8-eng-Botanix_A_Nix_native_CI_in_a_forge-agnostic_world_opus.opus?1776603159 238ae78e-b9c5-5e6a-98e7-8412f3137205 2026-04-17T10:15:00+02:00 Tom Hubrecht No 8, 2026, lixcon2026, Amphitheater Dussane, lixcon2026-eng, Day 1 Botanix is a new CI software that targets a native nix integration as it builds derivations as its pipeline. It integrates natively with both Gerrit and Forgejo currently but its genericity allows for even more diversity in the future! This talk will present the genesis of the Botanix project, worked on by students from ENS de Lyon, its philosophy and inner workings. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/YZZKYT/ 00:16:41 https://media.ccc.de/v/lixcon-2026-9-introduction-to-lixcon Welcome to LixCon! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/38JNUB/ Fri, 17 Apr 2026 10:00:00 +0200 https://cdn.media.ccc.de/events/lixcon/2026/opus/lixcon2026-9-eng-Introduction_to_LixCon_opus.opus?1776594613 378ba267-be86-570c-90c9-3c58132d3721 2026-04-17T10:00:00+02:00 Ryan Lahfa ("RaitoBezarius") No 9, 2026, lixcon2026, Amphitheater Dussane, lixcon2026-eng, Day 1 Welcome to LixCon! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/38JNUB/ 00:07:39 media.ccc.de / RSS 0.3.1 CCC media team media@c3voc.de CCC media team No CCC Congress Hacking Security Netzpolitik A wide variety of video material distributed by the CCC. All content is taken from cdn.media.ccc.de and media.ccc.de A wide variety of video material distributed by the Chaos Computer Club. This feed contains all events from lixcon2026 as opus