{"id":1277,"date":"2026-06-24T11:34:14","date_gmt":"2026-06-24T03:34:14","guid":{"rendered":"http:\/\/wp.rungobag.cn\/index.php\/2026\/06\/24\/show-hn-nucleus-a-security-hardened-nix-native-container-runtime\/"},"modified":"2026-06-24T11:34:14","modified_gmt":"2026-06-24T03:34:14","slug":"show-hn-nucleus-a-security-hardened-nix-native-container-runtime","status":"publish","type":"post","link":"https:\/\/wp.rungobag.cn\/index.php\/2026\/06\/24\/show-hn-nucleus-a-security-hardened-nix-native-container-runtime\/","title":{"rendered":"Show HN: Nucleus \u2013 A security-hardened, Nix-native container runtime"},"content":{"rendered":"<p>Hi HN, I&#8217;ve been building Nucleus, a lightweight Linux container runtime focused on two workloads: ephemeral AI-agent sandboxes and declarative NixOS services. It&#8217;s a single Rust binary, no daemon.It is not a Docker replacement and not a strict subset of Docker either. I dropped the entire image-and-distribution half (no Dockerfile, no layers, no registry, no pull\/push, no persistent storage layer) in exchange for going deeper on isolation and reproducibility. The rootfs is either a directory co&#8230;<\/p>\n<p><a href=\"https:\/\/github.com\/sig-id\/nucleus\">\u67e5\u770b\u539f\u6587 \u2192<\/a><\/p>\n<hr>\n<p><small>\u6765\u6e90\uff1aHacker News \u00b7 RSS \u91c7\u96c6<\/small><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi HN, I&#8217;ve been building Nucleus, a lightweight  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ai_generated_summary":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-1277","post","type-post","status-publish","format-standard","hentry","category-tech"],"_links":{"self":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/posts\/1277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1277"}],"version-history":[{"count":0,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/posts\/1277\/revisions"}],"wp:attachment":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}