jupiter: GC on every boot, silence mdadm warning, migrate sabnzbd off reused ini

nix.gc (common.nix) is weekly, too slow to catch a switch pinning the old
generation's closure on a 29G eMMC — add a full nix-collect-garbage on every
boot instead. Also set boot.swraid.mdadmConf so eval stops warning that
mdmon will crash (dormant here: the RAID0 array uses native superblocks, so
mdmon never actually runs).

sabnzbd.configFile is deprecated by the module; move to services.sabnzbd.settings
with credentials (web login, api/nzb keys, eweka.nl server) sourced from sops via
secretValues instead of living in a plaintext ini. admin_dir/log_dir are pinned
absolute at their original /mnt/data location so the existing download
queue/history isn't reset by the ini moving to /var/lib/sabnzbd.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

hosts/jupiter/configuration.nix

@@ -41,6 +41,21 @@
   # but at ~5G free on a 29G eMMC even 5 is too many — override down to 2.
   boot.loader.systemd-boot.configurationLimit = lib.mkForce 2;
 
+  # A `switch` pins the old generation as a GC root until the box reboots onto
+  # the new one (booted-system vs current-system) — common.nix's nix.gc is
+  # weekly, far too slow to catch that on a 29G eMMC. 2026-08-19: one switch
+  # alone took 14G -> 19G used; only reboot (releases the old root) + this GC
+  # brought it back to 14G. Run a full collect right after every boot instead
+  # of waiting on the weekly timer.
+  systemd.services.gc-on-boot = {
+    description = "Full nix-collect-garbage on every boot";
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${pkgs.nix}/bin/nix-collect-garbage -d";
+    };
+  };
+
   # Root lives on the ZimaBlade eMMC (mmcblk0). nixos-generate-config runs in
   # the RAM installer and does NOT detect these, so pin them here (merged with
   # hardware-configuration.nix) or stage-1 can't mount root and the box panics.
@@ -89,6 +104,10 @@
   # Mounted, NOT formatted; kept out of disko so it is never wiped.
   # ⚠️ RAID0 = no redundancy: either 16TB disk failing loses ALL data.
   boot.swraid.enable = true;  # assemble the mdadm array at boot
+  # Silences "mdmon service will crash" eval warning. RAID0 here uses native
+  # superblocks so mdmon (external-metadata arrays only) never actually runs,
+  # but the module warns unconditionally without SOME MAILADDR/PROGRAM set.
+  boot.swraid.mdadmConf = "MAILADDR root";
   fileSystems."/mnt/data" = {
     # fs UUID (stable) — the array may enumerate as /dev/md127, so avoid /dev/md0.
     device = "/dev/disk/by-uuid/dadbff6f-652e-49b2-bfed-eb1308ab8b78";

hosts/jupiter/secrets.nix

@@ -48,4 +48,20 @@
   # ci-bot access token to allow the ci-bot user to push to repos
   sops.secrets.gitea_ci_bot_token.owner = "gitea";
 
+  # SABnzbd credentials (web UI login, API keys, eweka.nl usenet server) —
+  # migrated off the reused ini in services/media/sabnzbd.nix into
+  # services.sabnzbd.settings + secretValues. sabnzbd_api_key predates this
+  # migration (provisioned for mediamanager's future use, services/experimental/
+  # mediamanager.nix — not currently imported by any host); reused here as the
+  # same single source of truth rather than duplicating it.
+  # owner = sabnzbd: the module's preStart (replace-secret) runs as the
+  # service's own User=/Group=, and sops secrets default to root:root 0400 —
+  # without this, replace-secret gets Permission denied reading /run/secrets.
+  sops.secrets.sabnzbd_web_username.owner = "sabnzbd";
+  sops.secrets.sabnzbd_web_password.owner = "sabnzbd";
+  sops.secrets.sabnzbd_api_key.owner = "sabnzbd";
+  sops.secrets.sabnzbd_nzb_key.owner = "sabnzbd";
+  sops.secrets.sabnzbd_eweka_username.owner = "sabnzbd";
+  sops.secrets.sabnzbd_eweka_password.owner = "sabnzbd";
+
 }

secrets/jupiter.yaml

@@ -9,6 +9,11 @@ immich_oauth_client_secret: ENC[AES256_GCM,data:+NbUnwImwFTYNjz3luzczpCf7oMetzYB
 gitea_runner_token: ENC[AES256_GCM,data:8ji4Nia7GMCBBsemUeGZRqzhlk1RnzzOLLdo7+to85KIC5Kz4AtDsQ==,iv:2wotlB1B/Co/NrZVcIVB4AlwL7DF9KnEVKe32FJNErU=,tag:zLzKPgGmXCkGfK7P/74pyw==,type:str]
 gitea_provisioning_token: ENC[AES256_GCM,data:aVzD+3qb0eAuGCNIXgzR338jMz9MqXun3nbgfZAirewDwT3D7T5T0Q==,iv:OOeDRk+4CHQyRh09qgUp7I4vcrvuqaAPAh5HgJ10Uvo=,tag:2Yey9e9WZteERDoqkIppWQ==,type:str]
 gitea_ci_bot_token: ENC[AES256_GCM,data:isgOYuA8S6w7WCUr2i2tW4F+b8mCRh8e+rjFJtM1fXEkkUIRNaiADA==,iv:W5IoxhuPCoTP2wLhedu4RYKrC8tBFFJ4B+QvNW3jjTc=,tag:ztxEwDdGJLc/JEkls1jrOA==,type:str]
+sabnzbd_web_username: ENC[AES256_GCM,data:yNU=,iv:t6Ev0bTLovn3gYtOltS14Y/ElUVCYGxxz8wGsgl9R44=,tag:k2yXYQ2yot1HaohCNDgycg==,type:str]
+sabnzbd_web_password: ENC[AES256_GCM,data:9Lo=,iv:H0Kz8A534RxX+7/Aue8Q87gCzSY5e/TrdDjeVYgC+Tg=,tag:tvVN6g5DheTN67oWsSBLHQ==,type:str]
+sabnzbd_nzb_key: ENC[AES256_GCM,data:DNVenqhJ7wf5Ng0XRA1gJN95e+90e6D9NImOSHJv/Us=,iv:eqFn0stB5pqh0ls4/impD8gc/lOkORwEJzRP6m7u1XU=,tag:Zs8ogLBZEZLyMvFBqhfpIA==,type:str]
+sabnzbd_eweka_username: ENC[AES256_GCM,data:eLsTZoM8T8fAlGaXWlDaoQ==,iv:eawyGhN7+d6UfBIbI3y1qgq+MYBGrXP6VfAkSOK6llA=,tag:ELOfQGHU5NOxZFhKOKf8LA==,type:str]
+sabnzbd_eweka_password: ENC[AES256_GCM,data:Mt3ZHAe2wzacCQq3x9Uy8WxjrVNad1SmU6sl8ZgrkMLymfq2eP4JzO/uPdD33A==,iv:PnFT95Zxqz4QBpPF5PRloKpoa15AU7Ef/Owwy+iDotw=,tag:/uRX00RzHLJN3gws5Qz8SA==,type:str]
 sops:
     age:
         - enc: |
@@ -29,7 +34,7 @@ sops:
             CzjSDQZTcseEXZNwuzZcfB5Mvq0BQvjOj7lGuxzuE4qwWkdJWGfVLQ==
             -----END AGE ENCRYPTED FILE-----
           recipient: age1zak7glavmg4026p2389fyqe769vqm4jrryknuqckgqq4merz5f7q44rkkt
-    lastmodified: "2026-07-29T21:40:50Z"
+    lastmodified: "2026-08-19T18:39:11Z"
-    mac: ENC[AES256_GCM,data:1tyHBdY4J4Q7QkjQrV7gCzAM4fGRxP1Qorq+nWW2N5chF1G8pUsof/qenjlGVkC0SwW4vsOHDPOxdPQGUatgsH442BY11lZ1YxbI96uu84XFcZkSye8jyvPLo37Lx6tOd10kZiAeY0hpyYGhJjRrO4p7Tmaa3y5ImiP6sS0Q4o0=,iv:RSn6zIjw76qzIFZKhDMBlcj4JiJDfLu8bO78eaCgj60=,tag:MX1ePOrbEzTs5cMUcuLa3Q==,type:str]
+    mac: ENC[AES256_GCM,data:nyfcDjWrmAHPb4wKPIUGOfQGQtX79Kz4KnOQJClMAicvLZThYP32WJqmNeZiS8QfqDGJMrTmEfxraYsDiMgKA6xDPCJDIB8WajEbXMqN0oSa7s8lxYmwZvHEA3n5G/GOezjr1nqYV4U35wLQrIk1ja4I1Pii5pOe2dgE9/7ugVY=,iv:qTV5813A0PBzukPM6CwCare0c6qo1fckqgM5wUGTbPc=,tag:AgtZ2p9Vi+u8LBplScBUTA==,type:str]
     unencrypted_suffix: _unencrypted
     version: 3.13.3

services/media/sabnzbd.nix

@@ -1,22 +1,79 @@
-{ ... }:
+{ config, ... }:
 
-# SABnzbd — usenet downloader. Reuses the config migrated from the old
+# SABnzbd — usenet downloader. Migrated off a reused hand-authored ini
-# ZimaOS docker stack (servers/API key/history already set up) by pointing
+# (servers/API key/history originally imported from the old ZimaOS docker
-# straight at the real ini instead of generating a fresh NixOS-managed one.
+# stack) onto NixOS-managed `settings`, per the module's own deprecation
-# Runs as the module's default dedicated `sabnzbd` system user — after first
+# notice for `configFile`. Only the values that differ from SABnzbd's own
-# deploy, chown the migrated config dir to it (see README/CLAUDE notes):
+# built-in defaults are declared here — everything else falls back to the
-#   chown -R sabnzbd:sabnzbd /mnt/data/AppData/sabnzbd/config
+# same defaults SABnzbd was already using.
+#
+# `admin_dir`/`log_dir` MUST stay absolute: the module writes the merged ini
+# to /var/lib/sabnzbd/sabnzbd.ini (eMMC), and both dirs are otherwise
+# relative to wherever the ini lives. Pointing them back at the ORIGINAL
+# /mnt/data location keeps the existing download queue/history database
+# (admin_dir) intact — a relative default here would silently "reset"
+# SABnzbd to an empty queue on first switch, even though nothing was deleted.
 {
   services.sabnzbd = {
     enable = true;
-    configFile = "/mnt/data/AppData/sabnzbd/config/sabnzbd.ini";
+    allowConfigWrite = true;   # let sabnzbd keep saving state (queue, wizard flags, ...)
-    allowConfigWrite = true;   # real pre-existing state — let sabnzbd keep saving it
+    settings = {
+      misc = {
+        host = "::";
+        port = 8085;
+        web_color = "Night";
+        enable_https = false;
+        url_base = "/sabnzbd";
+        cache_limit = "1G";
+        download_dir = "/mnt/data/HighSeas/Downloads/Incomplete";
+        complete_dir = "/mnt/data/HighSeas/Downloads";
+        admin_dir = "/mnt/data/AppData/sabnzbd/config/admin";
+        log_dir = "/mnt/data/AppData/sabnzbd/config/logs";
+        # Verbatim from the migrated ini — includes a pre-existing "izma ace"
+        # (missing comma) left as-is rather than silently "fixed" here.
+        unwanted_extensions = "exe, com, bat, ink, js, vbs, ps1, sh, py, php, pl, rb, jar, class, swf, scr, hta, msi, msp, msu, pif, ink, chm, vb, vba, ws, wsf, wsh, xll, docm, dotm, xlsm, xltm, pptm, potm, ppsm, sldm, thmx, xlam, ppam, docb, dotb, xltb, mht, mhtml, url, iqylink, deamon, elf, dmg, iso, cue, nrg, img, udf, wim, vhd, vhdx, vmdk, ova, tf, pb, savedmodel, h5, ckpt, meta, index, data-00000-of-00001, vocab, config, model, pt, tgz, tar.gz, bz2, xz, izma ace, arc, cab, jar, izh, pea, sit, sitx, sqx, zoo, pak, upk, bsa, dat, nzb, nzbs, nzb.gz, nzb.bz2";
+        host_whitelist = "cd1a98d07ece, helium, sabnzbd.jupiter.sol, localhost, jupiter, jupiter.sol";
+        username = "@sabnzbd_web_username@";
+        password = "@sabnzbd_web_password@";
+        api_key = "@sabnzbd_api_key@";
+        nzb_key = "@sabnzbd_nzb_key@";
+      };
+      servers."news.eweka.nl" = {
+        name = "news.eweka.nl";
+        displayname = "news.eweka.nl";
+        host = "news.eweka.nl";
+        port = 563;
+        connections = 8;
+        ssl = true;
+        ssl_verify = "strict";
+        username = "@sabnzbd_eweka_username@";
+        password = "@sabnzbd_eweka_password@";
+      };
+      categories = {
+        "*" = { name = "*"; order = 0; pp = 3; };
+        movies = { name = "movies"; order = 1; script = "Default"; priority = -100; };
+        tv = { name = "tv"; order = 2; script = "Default"; priority = -100; };
+        audio = { name = "audio"; order = 3; script = "Default"; priority = -100; };
+        software = { name = "software"; order = 4; script = "Default"; priority = -100; };
+        prowlarr = { name = "prowlarr"; order = 5; script = "Default"; priority = -100; };
+        xxx = { name = "xxx"; order = 6; script = "Default"; priority = -100; };
+        readarr = { name = "readarr"; order = 7; script = "Default"; priority = -100; };
+      };
+    };
+    secretValues = {
+      "@sabnzbd_web_username@" = config.sops.secrets.sabnzbd_web_username.path;
+      "@sabnzbd_web_password@" = config.sops.secrets.sabnzbd_web_password.path;
+      "@sabnzbd_api_key@" = config.sops.secrets.sabnzbd_api_key.path;
+      "@sabnzbd_nzb_key@" = config.sops.secrets.sabnzbd_nzb_key.path;
+      "@sabnzbd_eweka_username@" = config.sops.secrets.sabnzbd_eweka_username.path;
+      "@sabnzbd_eweka_password@" = config.sops.secrets.sabnzbd_eweka_password.path;
+    };
   };
 
   # Write access to the shared downloads dir (owned darman:users on disk).
   users.users.sabnzbd.extraGroups = [ "users" ];
 
-  # configFile and the downloads dir both live on the array, but systemd only
+  # download/complete/admin dirs all live on the array, but systemd only
   # derives RequiresMountsFor from /var/lib/sabnzbd (eMMC) — so with the array
   # absent sabnzbd would start and download onto the 29G OS disk.
   systemd.services.sabnzbd.unitConfig.RequiresMountsFor = [ "/mnt/data" ];