refactor: simplify module composition

modules/features/bitwarden.nix

@@ -1,22 +1,26 @@
-{ ... }:
+{
+  config,
+  ...
+}:
+let
+  metaLib = config.meta.lib;
+in
 {
   flake.modules.homeManager.bitwarden =
     {
       config,
-      lib,
       pkgs,
       ...
     }:
     let
       user = config.meta.user;
-      primaryEmail = builtins.head (lib.filter (email: email.primary) (builtins.attrValues user.emails));
     in
     {
       programs.rbw = {
         enable = true;
         settings = {
-          base_url = "https://vault.jelles.net";
+          base_url = metaLib.repo.services.vaultwarden.url;
-          email = primaryEmail.address;
+          email = user.primaryEmail.address;
           pinentry = pkgs.pinentry-gnome3;
         };
       };

modules/features/ergon-workstation.nix

@@ -1,9 +0,0 @@
-{ config, ... }:
-let
-  homeModules = config.flake.modules.homeManager;
-in
-{
-  flake.modules.homeManager.ergon-workstation = {
-    imports = [ homeModules.workstation-base ];
-  };
-}

modules/features/git.nix

@@ -8,7 +8,6 @@
     }:
     let
       user = config.meta.user;
-      primaryEmail = builtins.head (lib.filter (email: email.primary) (builtins.attrValues user.emails));
       usesScopedIdentity = user != null && user.sourceControl.profiles != { };
     in
     {
@@ -25,7 +24,7 @@
         // lib.optionalAttrs (!usesScopedIdentity) {
           user = {
             name = user.realName;
-            email = primaryEmail.address;
+            email = user.primaryEmail.address;
           };
         };
       };

modules/features/input.nix

@@ -1,3 +1,10 @@
+{
+  config,
+  ...
+}:
+let
+  metaLib = config.meta.lib;
+in
 {
   flake.modules.nixos.input =
     {
@@ -6,64 +13,15 @@
       ...
     }:
     let
-      hostInput = config.meta.host.input;
+      inputProfiles = metaLib.mkInputProfiles config.meta.host.input;
-
-      hasAnyConfiguredValue = attrs: lib.any (value: value != null) (lib.attrValues attrs);
-      libinputScrollMethodMap = {
-        edge = "edge";
-        "no-scroll" = "none";
-        "on-button-down" = "button";
-        "two-finger" = "twofinger";
-      };
-      libinputClickMethodMap = {
-        "button-areas" = "buttonareas";
-        clickfinger = "clickfinger";
-      };
-
-      hasMouseConfig = hasAnyConfiguredValue hostInput.mouse;
-      hasTouchpadConfig = hasAnyConfiguredValue hostInput.touchpad;
-      hasPointerConfig = hasMouseConfig || hasTouchpadConfig;
-
-      mouseConfig = lib.filterAttrs (_: value: value != null) {
-        accelProfile = hostInput.mouse.accelProfile;
-        accelSpeed =
-          if hostInput.mouse.accelSpeed == null then null else toString hostInput.mouse.accelSpeed;
-        leftHanded = hostInput.mouse.leftHanded;
-        middleEmulation = hostInput.mouse.middleEmulation;
-        naturalScrolling = hostInput.mouse.naturalScrolling;
-        scrollMethod =
-          if hostInput.mouse.scrollMethod == null then
-            null
-          else
-            libinputScrollMethodMap.${hostInput.mouse.scrollMethod};
-      };
-
-      touchpadConfig = lib.filterAttrs (_: value: value != null) {
-        accelProfile = hostInput.touchpad.accelProfile;
-        accelSpeed =
-          if hostInput.touchpad.accelSpeed == null then null else toString hostInput.touchpad.accelSpeed;
-        clickMethod =
-          if hostInput.touchpad.clickMethod == null then
-            null
-          else
-            libinputClickMethodMap.${hostInput.touchpad.clickMethod};
-        disableWhileTyping = hostInput.touchpad.disableWhileTyping;
-        leftHanded = hostInput.touchpad.leftHanded;
-        middleEmulation = hostInput.touchpad.middleEmulation;
-        naturalScrolling = hostInput.touchpad.naturalScrolling;
-        scrollMethod =
-          if hostInput.touchpad.scrollMethod == null then
-            null
-          else
-            libinputScrollMethodMap.${hostInput.touchpad.scrollMethod};
-        tapping = hostInput.touchpad.tapping;
-      };
     in
     {
-      services.libinput = lib.mkIf hasPointerConfig {
+      services.libinput = lib.mkIf inputProfiles.hasPointerConfig {
         enable = true;
-        mouse = mouseConfig;
+        inherit (inputProfiles.libinput)
-        touchpad = touchpadConfig;
+          mouse
+          touchpad
+          ;
       };
     };
 }

modules/features/kiri-workstation.nix

@@ -1,13 +0,0 @@
-{ config, ... }:
-let
-  homeModules = config.flake.modules.homeManager;
-in
-{
-  flake.modules.homeManager.kiri-workstation = {
-    imports = [
-      homeModules.workstation-base
-      homeModules.syncthing
-      homeModules.qbittorrent-client
-    ];
-  };
-}

modules/features/meta.nix

@@ -3,10 +3,41 @@ let
   mkNullableOption =
     type:
     lib.mkOption {
-      inherit type;
+      type = lib.types.nullOr type;
       default = null;
     };
 
+  hasSinglePrimaryEmail =
+    user: builtins.length (lib.filter (email: email.primary) (builtins.attrValues user.emails)) == 1;
+
+  primaryEmailFallback = {
+    address = "";
+    primary = false;
+    type = "";
+  };
+
+  sourceControlScopeType = lib.types.enum [
+    "personal"
+    "work"
+  ];
+
+  pointerAccelProfileType = lib.types.enum [
+    "adaptive"
+    "flat"
+  ];
+
+  pointerScrollMethodType = lib.types.enum [
+    "no-scroll"
+    "two-finger"
+    "edge"
+    "on-button-down"
+  ];
+
+  touchpadClickMethodType = lib.types.enum [
+    "button-areas"
+    "clickfinger"
+  ];
+
   emailType = lib.types.submodule (
     { ... }:
     {
@@ -79,10 +110,7 @@ let
         };
 
         projectScope = lib.mkOption {
-          type = lib.types.enum [
+          type = sourceControlScopeType;
-            "personal"
-            "work"
-          ];
           default = "personal";
         };
       };
@@ -91,6 +119,10 @@ let
 
   userType = lib.types.submodule (
     { config, ... }:
+    let
+      primaryEmails = lib.filter (email: email.primary) (builtins.attrValues config.emails);
+      primaryEmail = if primaryEmails == [ ] then primaryEmailFallback else builtins.head primaryEmails;
+    in
     {
       options = {
         name = lib.mkOption {
@@ -118,11 +150,19 @@ let
           type = lib.types.attrsOf emailType;
         };
 
+        primaryEmail = lib.mkOption {
+          type = emailType;
+          readOnly = true;
+          description = "Derived primary email entry for this user.";
+        };
+
         sourceControl = lib.mkOption {
           type = sourceControlType;
           default = { };
         };
       };
+
+      config.primaryEmail = primaryEmail;
     }
   );
 
@@ -179,28 +219,12 @@ let
     { ... }:
     {
       options = {
-        accelProfile = mkNullableOption (
+        accelProfile = mkNullableOption (pointerAccelProfileType);
-          lib.types.nullOr (
+        accelSpeed = mkNullableOption lib.types.float;
-            lib.types.enum [
+        leftHanded = mkNullableOption lib.types.bool;
-              "adaptive"
+        middleEmulation = mkNullableOption lib.types.bool;
-              "flat"
+        naturalScrolling = mkNullableOption lib.types.bool;
-            ]
+        scrollMethod = mkNullableOption pointerScrollMethodType;
-          )
-        );
-        accelSpeed = mkNullableOption (lib.types.nullOr lib.types.float);
-        leftHanded = mkNullableOption (lib.types.nullOr lib.types.bool);
-        middleEmulation = mkNullableOption (lib.types.nullOr lib.types.bool);
-        naturalScrolling = mkNullableOption (lib.types.nullOr lib.types.bool);
-        scrollMethod = mkNullableOption (
-          lib.types.nullOr (
-            lib.types.enum [
-              "no-scroll"
-              "two-finger"
-              "edge"
-              "on-button-down"
-            ]
-          )
-        );
       };
     }
   );
@@ -209,38 +233,15 @@ let
     { ... }:
     {
       options = {
-        accelProfile = mkNullableOption (
+        accelProfile = mkNullableOption (pointerAccelProfileType);
-          lib.types.nullOr (
+        accelSpeed = mkNullableOption lib.types.float;
-            lib.types.enum [
+        clickMethod = mkNullableOption touchpadClickMethodType;
-              "adaptive"
+        disableWhileTyping = mkNullableOption lib.types.bool;
-              "flat"
+        leftHanded = mkNullableOption lib.types.bool;
-            ]
+        middleEmulation = mkNullableOption lib.types.bool;
-          )
+        naturalScrolling = mkNullableOption lib.types.bool;
-        );
+        scrollMethod = mkNullableOption pointerScrollMethodType;
-        accelSpeed = mkNullableOption (lib.types.nullOr lib.types.float);
+        tapping = mkNullableOption lib.types.bool;
-        clickMethod = mkNullableOption (
-          lib.types.nullOr (
-            lib.types.enum [
-              "button-areas"
-              "clickfinger"
-            ]
-          )
-        );
-        disableWhileTyping = mkNullableOption (lib.types.nullOr lib.types.bool);
-        leftHanded = mkNullableOption (lib.types.nullOr lib.types.bool);
-        middleEmulation = mkNullableOption (lib.types.nullOr lib.types.bool);
-        naturalScrolling = mkNullableOption (lib.types.nullOr lib.types.bool);
-        scrollMethod = mkNullableOption (
-          lib.types.nullOr (
-            lib.types.enum [
-              "no-scroll"
-              "two-finger"
-              "edge"
-              "on-button-down"
-            ]
-          )
-        );
-        tapping = mkNullableOption (lib.types.nullOr lib.types.bool);
       };
     }
   );
@@ -294,13 +295,22 @@ let
   );
 in
 {
-  flake.modules.nixos.meta = {
+  flake.modules.nixos.meta =
+    { config, ... }:
+    {
       options.meta.host = lib.mkOption {
         type = hostType;
       };
+
+      config.assertions = lib.mapAttrsToList (userName: user: {
+        assertion = hasSinglePrimaryEmail user;
+        message = "User `${userName}` must define exactly one primary email entry.";
+      }) config.meta.host.users;
     };
 
-  flake.modules.homeManager.meta = {
+  flake.modules.homeManager.meta =
+    { config, ... }:
+    {
       options.meta = {
         host = lib.mkOption {
           type = lib.types.nullOr hostType;
@@ -312,5 +322,10 @@ in
           default = null;
         };
       };
+
+      config.assertions = lib.optional (config.meta.user != null) {
+        assertion = hasSinglePrimaryEmail config.meta.user;
+        message = "User `${config.meta.user.name}` must define exactly one primary email entry.";
+      };
     };
 }

modules/features/niri/default.nix

@@ -30,8 +30,6 @@ in
       ...
     }:
     let
-      hostInput = config.meta.host.input;
-
       outputs = lib.mapAttrs (
         _: display:
         {
@@ -50,44 +48,17 @@ in
           inherit (display) mode;
         }
       ) config.meta.host.displays;
-      terminalPackage = metaLib.resolvePackagePath {
+      inputProfiles = metaLib.mkInputProfiles config.meta.host.input;
+      terminal = metaLib.resolveUserTerminal {
         inherit pkgs;
-        path = config.meta.user.terminalPackagePath;
+        user = config.meta.user;
-      };
-      hasMainProgram = terminalPackage != null && terminalPackage ? meta.mainProgram;
-
-      mouseSettings = lib.filterAttrs (_: value: value != null) {
-        accel-profile = hostInput.mouse.accelProfile;
-        accel-speed = hostInput.mouse.accelSpeed;
-        left-handed = hostInput.mouse.leftHanded;
-        middle-emulation = hostInput.mouse.middleEmulation;
-        natural-scroll = hostInput.mouse.naturalScrolling;
-        scroll-method = hostInput.mouse.scrollMethod;
-      };
-
-      touchpadSettings = lib.filterAttrs (_: value: value != null) {
-        accel-profile = hostInput.touchpad.accelProfile;
-        accel-speed = hostInput.touchpad.accelSpeed;
-        click-method = hostInput.touchpad.clickMethod;
-        dwt = hostInput.touchpad.disableWhileTyping;
-        left-handed = hostInput.touchpad.leftHanded;
-        middle-emulation = hostInput.touchpad.middleEmulation;
-        natural-scroll = hostInput.touchpad.naturalScrolling;
-        scroll-method = hostInput.touchpad.scrollMethod;
-        tap = hostInput.touchpad.tapping;
       };
     in
     {
-      assertions = [
+      assertions = metaLib.mkTerminalAssertions {
-        {
+        inherit terminal;
-          assertion = terminalPackage != null;
+        user = config.meta.user;
-          message = "Unknown terminal package `${lib.showAttrPath config.meta.user.terminalPackagePath}` for user `${config.meta.user.name}`.";
+      };
-        }
-        {
-          assertion = hasMainProgram;
-          message = "Terminal package `${lib.showAttrPath config.meta.user.terminalPackagePath}` must define `meta.mainProgram`.";
-        }
-      ];
 
       home.sessionVariables.NIXOS_OZONE_WL = "1";
 
@@ -167,20 +138,20 @@ in
             xkb.options = "caps:escape";
           };
         }
-        // lib.optionalAttrs (mouseSettings != { }) {
+        // lib.optionalAttrs (inputProfiles.niri.mouse != { }) {
-          mouse = mouseSettings;
+          mouse = inputProfiles.niri.mouse;
         }
-        // lib.optionalAttrs (touchpadSettings != { }) {
+        // lib.optionalAttrs (inputProfiles.niri.touchpad != { }) {
-          touchpad = touchpadSettings;
+          touchpad = inputProfiles.niri.touchpad;
         };
 
         binds =
-          if hasMainProgram then
+          if terminal.hasMainProgram then
             import ./_bindings.nix {
               inherit
                 lib
-                terminalPackage
                 ;
+              terminalPackage = terminal.package;
             }
           else
             { };

modules/features/noctalia.nix

@@ -38,18 +38,17 @@ in
       ...
     }:
     let
-      terminalPackage = metaLib.resolvePackagePath {
+      terminal = metaLib.resolveUserTerminal {
         inherit pkgs;
-        path = config.meta.user.terminalPackagePath;
+        user = config.meta.user;
       };
-      hasMainProgram = terminalPackage != null && terminalPackage ? meta.mainProgram;
       baseSettings =
-        if hasMainProgram then
+        if terminal.hasMainProgram then
           import ./_noctalia-config.nix {
             inherit
               lib
-              terminalPackage
               ;
+            terminalPackage = terminal.package;
           }
         else
           { };
@@ -57,16 +56,10 @@ in
     {
       imports = [ inputs.noctalia.homeModules.default ];
 
-      assertions = [
+      assertions = metaLib.mkTerminalAssertions {
-        {
+        inherit terminal;
-          assertion = terminalPackage != null;
+        user = config.meta.user;
-          message = "Unknown terminal package `${lib.showAttrPath config.meta.user.terminalPackagePath}` for user `${config.meta.user.name}`.";
+      };
-        }
-        {
-          assertion = hasMainProgram;
-          message = "Terminal package `${lib.showAttrPath config.meta.user.terminalPackagePath}` must define `meta.mainProgram`.";
-        }
-      ];
 
       programs.noctalia-shell = {
         enable = true;
@@ -88,18 +81,17 @@ in
       ...
     }:
     let
-      terminalPackage = metaLib.resolvePackagePath {
+      terminal = metaLib.resolveUserTerminal {
         inherit pkgs;
-        path = config.meta.user.terminalPackagePath;
+        user = config.meta.user;
       };
-      hasMainProgram = terminalPackage != null && terminalPackage ? meta.mainProgram;
       baseSettings =
-        if hasMainProgram then
+        if terminal.hasMainProgram then
           import ./_noctalia-config.nix {
             inherit
               lib
-              terminalPackage
               ;
+            terminalPackage = terminal.package;
           }
         else
           { };
@@ -107,7 +99,7 @@ in
     {
       imports = [ homeModules.noctalia ];
       programs.noctalia-shell.settings = lib.mkForce (
-        if hasMainProgram then mkPortableSettings baseSettings else { }
+        if terminal.hasMainProgram then mkPortableSettings baseSettings else { }
       );
     };
 }

modules/features/personal-productivity.nix

@@ -1,13 +0,0 @@
-{ config, ... }:
-let
-  homeModules = config.flake.modules.homeManager;
-in
-{
-  flake.modules.homeManager.personal-productivity = {
-    imports = [
-      homeModules.bitwarden
-      homeModules.email
-      homeModules.pim
-    ];
-  };
-}

modules/features/pim.nix

@@ -1,3 +1,10 @@
+{
+  config,
+  ...
+}:
+let
+  metaLib = config.meta.lib;
+in
 {
   flake.modules.homeManager.pim =
     {
@@ -44,7 +51,7 @@
           };
 
           remote = {
-            url = "https://radicale.jelles.net/";
+            url = metaLib.repo.services.radicale.url;
             type = "caldav";
             userName = config.home.username;
             passwordCommand = [

modules/features/services/actual.nix

@@ -1,6 +1,7 @@
 { config, ... }:
 let
   metaLib = config.meta.lib;
+  service = metaLib.repo.services.actual;
 in
 {
   flake.modules.nixos.actual =
@@ -11,15 +12,17 @@ in
           enable = true;
           openFirewall = false;
           settings = {
-            port = 3000;
+            inherit (service) port;
-            hostname = "127.0.0.1";
+            hostname = service.host;
           };
         };
       }
 
       (metaLib.mkCaddyReverseProxy {
-        domain = "finance.jelles.net";
+        inherit (service)
-        port = 3000;
+          domain
+          port
+          ;
       })
     ];
 }

modules/features/services/caddy.nix

@@ -1,8 +1,12 @@
+{ config, ... }:
+let
+  metaLib = config.meta.lib;
+in
 {
   flake.modules.nixos.caddy = {
     services.caddy = {
       enable = true;
-      email = "mail@jelles.net";
+      email = metaLib.repo.contact.email;
       openFirewall = true;
     };
   };

modules/features/services/deluge.nix

@@ -1,18 +0,0 @@
-{
-  flake.modules.nixos.deluge-service =
-    { ... }:
-    {
-      sops.secrets.deluge-auth-file = { };
-
-      services.deluge = {
-        enable = true;
-        declarative = false;
-      };
-    };
-
-  flake.modules.homeManager.deluge-client =
-    { pkgs, ... }:
-    {
-      home.packages = [ pkgs.deluge ];
-    };
-}

modules/features/services/gitea.nix

@@ -1,6 +1,7 @@
 { config, ... }:
 let
   metaLib = config.meta.lib;
+  service = metaLib.repo.services.gitea;
 in
 {
   flake.modules.nixos.gitea =
@@ -12,10 +13,10 @@ in
 
           settings = {
             server = {
-              DOMAIN = "git.jelles.net";
+              DOMAIN = service.domain;
-              ROOT_URL = "https://git.jelles.net/";
+              ROOT_URL = service.url;
-              HTTP_PORT = 3001;
+              HTTP_PORT = service.port;
-              HTTP_ADDR = "127.0.0.1";
+              HTTP_ADDR = service.host;
 
               START_SSH_SERVER = false;
               SSH_PORT = 22;
@@ -31,8 +32,10 @@ in
       }
 
       (metaLib.mkCaddyReverseProxy {
-        domain = "git.jelles.net";
+        inherit (service)
-        port = 3001;
+          domain
+          port
+          ;
       })
     ];
 }

modules/features/services/qbittorrent.nix

@@ -1,11 +0,0 @@
-{ ... }:
-{
-  flake.modules.nixos.qbittorrent = {
-    services.qbittorrent = {
-      enable = true;
-      openFirewall = true;
-      torrentingPort = 43864;
-      webuiPort = 8123;
-    };
-  };
-}

modules/features/services/radicale.nix

@@ -1,6 +1,7 @@
 { config, ... }:
 let
   metaLib = config.meta.lib;
+  service = metaLib.repo.services.radicale;
 in
 {
   flake.modules.nixos.radicale =
@@ -10,7 +11,7 @@ in
         services.radicale = {
           enable = true;
           settings = {
-            server.hosts = [ "127.0.0.1:5232" ];
+            server.hosts = [ "${service.host}:${toString service.port}" ];
 
             auth = {
               type = "htpasswd";
@@ -24,8 +25,10 @@ in
       }
 
       (metaLib.mkCaddyReverseProxy {
-        domain = "radicale.jelles.net";
+        inherit (service)
-        port = 5232;
+          domain
+          port
+          ;
         extraHeaders = [
           {
             name = "X-Script-Name";

modules/features/services/vaultwarden.nix

@@ -1,6 +1,7 @@
 { config, ... }:
 let
   metaLib = config.meta.lib;
+  service = metaLib.repo.services.vaultwarden;
 in
 {
   flake.modules.nixos.vaultwarden =
@@ -11,17 +12,19 @@ in
           enable = true;
           backupDir = "/var/backup/vaultwarden";
           config = {
-            DOMAIN = "https://vault.jelles.net";
+            DOMAIN = service.url;
             SIGNUPS_ALLOWED = false;
-            ROCKET_PORT = 8100;
+            ROCKET_PORT = service.port;
             ROCKET_LOG = "critical";
           };
         };
       }
 
       (metaLib.mkCaddyReverseProxy {
-        domain = "vault.jelles.net";
+        inherit (service)
-        port = 8100;
+          domain
+          port
+          ;
       })
     ];
 }

modules/features/terminal.nix

@@ -11,38 +11,22 @@ in
       ...
     }:
     let
-      terminalPackage = metaLib.resolvePackagePath {
+      terminal = metaLib.resolveUserTerminal {
         inherit pkgs;
-        path = config.meta.user.terminalPackagePath;
+        user = config.meta.user;
       };
-      hasTerminalPackage = terminalPackage != null;
-      hasMainProgram = hasTerminalPackage && terminalPackage ? meta.mainProgram;
-      terminalDesktopId = if hasMainProgram then "${terminalPackage.meta.mainProgram}.desktop" else null;
     in
     {
-      assertions = [
+      assertions = metaLib.mkTerminalAssertions {
-        {
+        inherit terminal;
-          assertion = hasTerminalPackage;
+        user = config.meta.user;
-          message = "Unknown terminal package `${lib.showAttrPath config.meta.user.terminalPackagePath}` for user `${config.meta.user.name}`.";
+        requireDesktopEntry = true;
-        }
+        requireKitty = true;
-        {
+      };
-          assertion = hasMainProgram;
-          message = "Terminal package `${lib.showAttrPath config.meta.user.terminalPackagePath}` must define `meta.mainProgram`.";
-        }
-        {
-          assertion =
-            hasMainProgram && builtins.pathExists "${terminalPackage}/share/applications/${terminalDesktopId}";
-          message = "Terminal package `${lib.showAttrPath config.meta.user.terminalPackagePath}` must provide `${terminalDesktopId}`.";
-        }
-        {
-          assertion = hasMainProgram && terminalPackage.meta.mainProgram == "kitty";
-          message = "The terminal feature currently only supports kitty-specific Home Manager configuration.";
-        }
-      ];
 
       xdg.terminal-exec = {
         enable = true;
-        settings.default = lib.optional (terminalDesktopId != null) terminalDesktopId;
+        settings.default = lib.optional (terminal.desktopId != null) terminal.desktopId;
       };
 
       programs.kitty = {

modules/features/theme.nix

@@ -1,3 +1,10 @@
+{
+  config,
+  ...
+}:
+let
+  metaLib = config.meta.lib;
+in
 {
   flake.modules.nixos.theme =
     {
@@ -5,10 +12,12 @@
       ...
     }:
     let
-      cursorTheme = {
+      repoTheme = metaLib.repo.theme;
-        name = "phinger-cursors-light";
+      cursorTheme = repoTheme.cursor // {
-        package = pkgs.phinger-cursors;
+        package = metaLib.resolvePackagePath {
-        size = 24;
+          inherit pkgs;
+          path = repoTheme.cursor.packagePath;
+        };
       };
     in
     {
@@ -25,21 +34,25 @@
   flake.modules.homeManager.theme =
     { config, pkgs, ... }:
     let
-      cursorTheme = {
+      repoTheme = metaLib.repo.theme;
-        name = "phinger-cursors-light";
+      cursorTheme = repoTheme.cursor // {
-        package = pkgs.phinger-cursors;
+        package = metaLib.resolvePackagePath {
-        size = 24;
+          inherit pkgs;
+          path = repoTheme.cursor.packagePath;
+        };
       };
 
       kanagawaThemeSrc = pkgs.fetchFromGitHub {
-        owner = "Fausto-Korpsvart";
+        inherit (repoTheme.kanagawa)
-        repo = "Kanagawa-GKT-Theme";
+          hash
-        rev = "55ca4ba249eba21f861b9866b71ab41bb8930318";
+          owner
-        hash = "sha256-UdMoMx2DoovcxSp/zBZ3PRv/Qpj+prd0uPm1gmdak2E=";
+          repo
+          rev
+          ;
       };
 
       kanagawaOverride = {
-        version = "unstable-2025-10-23";
+        version = repoTheme.kanagawa.version;
         src = kanagawaThemeSrc;
       };
     in
@@ -59,14 +72,14 @@
           "sftp://orion Orion VPS"
         ];
         theme = {
-          name = "Kanagawa-BL-LB";
+          name = repoTheme.kanagawa.gtkThemeName;
           package = pkgs.kanagawa-gtk-theme.overrideAttrs (_: kanagawaOverride);
         };
         gtk4.theme = {
           inherit (config.gtk.theme) name package;
         };
         iconTheme = {
-          name = "Kanagawa";
+          name = repoTheme.kanagawa.iconThemeName;
           package = pkgs.kanagawa-icon-theme.overrideAttrs (_: kanagawaOverride);
         };
       };

modules/features/workstation-base.nix

@@ -33,15 +33,17 @@ in
   flake.modules.homeManager.workstation-base = {
     imports = [
       homeModules.ai
+      homeModules.bitwarden
       homeModules.clipboard
       homeModules.dev-tools
+      homeModules.email
       homeModules.local-apps
       homeModules.mpv
       homeModules.neovim
       homeModules.nh
       homeModules.niri
       homeModules.nix
-      homeModules.personal-productivity
+      homeModules.pim
       homeModules.podman
       homeModules.shell
       homeModules.sops

modules/flake-parts.nix

@@ -4,6 +4,11 @@
   ...
 }:
 let
+  hostNames = [
+    "orion"
+    "polaris"
+    "zenith"
+  ];
   nixosModules = config.flake.modules.nixos;
 in
 {
@@ -11,22 +16,13 @@ in
 
   systems = [ "x86_64-linux" ];
 
-  flake.nixosConfigurations = {
+  flake.nixosConfigurations = inputs.nixpkgs.lib.genAttrs hostNames (
-    orion = inputs.nixpkgs.lib.nixosSystem {
+    name:
+    inputs.nixpkgs.lib.nixosSystem {
       specialArgs = { inherit inputs; };
-      modules = [ nixosModules.orion ];
+      modules = [ nixosModules.${name} ];
-    };
+    }
-
+  );
-    polaris = inputs.nixpkgs.lib.nixosSystem {
-      specialArgs = { inherit inputs; };
-      modules = [ nixosModules.polaris ];
-    };
-
-    zenith = inputs.nixpkgs.lib.nixosSystem {
-      specialArgs = { inherit inputs; };
-      modules = [ nixosModules.zenith ];
-    };
-  };
 
   perSystem =
     { pkgs, ... }:

modules/hosts/orion/default.nix

@@ -17,22 +17,17 @@ in
       ...
     }:
     let
-      terminalPackage = metaLib.resolvePackagePath {
+      terminal = metaLib.resolveUserTerminal {
         inherit pkgs;
-        path = config.meta.host.users.kiri.terminalPackagePath;
+        user = config.meta.host.users.kiri;
       };
     in
     {
-      assertions = [
+      assertions = metaLib.mkTerminalAssertions {
-        {
+        inherit terminal;
-          assertion = terminalPackage != null;
+        user = config.meta.host.users.kiri;
-          message = "Unknown terminal package `${lib.showAttrPath config.meta.host.users.kiri.terminalPackagePath}` for user `kiri`.";
+        requireTerminfo = true;
-        }
+      };
-        {
-          assertion = terminalPackage != null && lib.elem "terminfo" terminalPackage.outputs;
-          message = "Terminal package `${lib.showAttrPath config.meta.host.users.kiri.terminalPackagePath}` must provide a `terminfo` output for `orion`.";
-        }
-      ];
 
       users.users.kiri = {
         linger = true;
@@ -43,15 +38,20 @@ in
 
       environment.systemPackages = [
       ]
-      ++ lib.optional (terminalPackage != null && lib.elem "terminfo" terminalPackage.outputs) (
+      ++ lib.optional terminal.hasTerminfo (lib.getOutput "terminfo" terminal.package);
-        lib.getOutput "terminfo" terminalPackage
-      );
     };
 
   flake.modules.nixos.orion = metaLib.mkHost {
     name = "orion";
     users = {
-      inherit (metaLib.users) kiri;
+      kiri = {
+        account = metaLib.users.kiri;
+        homeImports = [
+          homeModules.shell
+          homeModules.git
+          homeModules.syncthing
+        ];
+      };
     };
 
     imports = [
@@ -66,15 +66,6 @@ in
       nixosModules.radicale
       nixosModules.actual
       nixosModules.gitea
-      (metaLib.mkHostUser {
-        account = metaLib.users.kiri;
-        needsPassword = false;
-        homeImports = [
-          homeModules.shell
-          homeModules.git
-          homeModules.syncthing
-        ];
-      })
       ./_hardware.nix
       ./_disk.nix
     ];

modules/hosts/polaris/default.nix

@@ -39,31 +39,30 @@ in
     };
 
     users = {
-      inherit (metaLib.users)
+      kiri = {
-        ergon
+        account = metaLib.users.kiri;
-        kiri
+        needsPassword = true;
-        ;
+        homeImports = [
+          homeModules.workstation-base
+          homeModules.syncthing
+          homeModules.qbittorrent-client
+          homeModules.noctalia
+        ];
+      };
+
+      ergon = {
+        account = metaLib.users.ergon;
+        needsPassword = true;
+        homeImports = [
+          homeModules.workstation-base
+          homeModules.noctalia
+        ];
+      };
     };
 
     imports = [
       nixosModules.workstation-base
       nixosModules.steam
-      (metaLib.mkHostUser {
-        account = metaLib.users.kiri;
-        needsPassword = true;
-        homeImports = [
-          homeModules.kiri-workstation
-          homeModules.noctalia
-        ];
-      })
-      (metaLib.mkHostUser {
-        account = metaLib.users.ergon;
-        needsPassword = true;
-        homeImports = [
-          homeModules.ergon-workstation
-          homeModules.noctalia
-        ];
-      })
       ./_hardware.nix
     ]
     ++ (with inputs.nixos-hardware.nixosModules; [

modules/hosts/zenith/default.nix

@@ -40,31 +40,30 @@ in
     };
 
     users = {
-      inherit (metaLib.users)
+      kiri = {
-        ergon
+        account = metaLib.users.kiri;
-        kiri
+        needsPassword = true;
-        ;
+        homeImports = [
+          homeModules.workstation-base
+          homeModules.syncthing
+          homeModules.qbittorrent-client
+          homeModules.noctalia-portable
+        ];
+      };
+
+      ergon = {
+        account = metaLib.users.ergon;
+        needsPassword = true;
+        homeImports = [
+          homeModules.workstation-base
+          homeModules.noctalia-portable
+        ];
+      };
     };
 
     imports = [
       nixosModules.workstation-base
       nixosModules.laptop-power
-      (metaLib.mkHostUser {
-        account = metaLib.users.kiri;
-        needsPassword = true;
-        homeImports = [
-          homeModules.kiri-workstation
-          homeModules.noctalia-portable
-        ];
-      })
-      (metaLib.mkHostUser {
-        account = metaLib.users.ergon;
-        needsPassword = true;
-        homeImports = [
-          homeModules.ergon-workstation
-          homeModules.noctalia-portable
-        ];
-      })
       {
         hardware.enableRedistributableFirmware = true;
         services.fwupd.enable = true;

modules/lib.nix

@@ -15,20 +15,84 @@ let
       stateVersion ? "24.05",
     }:
     {
+      config,
+      pkgs,
+      ...
+    }:
+    let
+      hostUsers = lib.mapAttrs (_: spec: spec.account) users;
+
+      userAssertions = lib.flatten (
+        lib.mapAttrsToList (userName: spec: [
+          {
+            assertion = userName == spec.account.name;
+            message = "Host `${name}` declares user `${userName}` with mismatched account name `${spec.account.name}`.";
+          }
+          {
+            assertion = builtins.isList spec.homeImports;
+            message = "Host `${name}` user `${userName}` must define `homeImports` as a list.";
+          }
+        ]) users
+      );
+
+      passwordUserSpecs = lib.filterAttrs (_: spec: spec.needsPassword or false) users;
+    in
+    {
+      assertions = userAssertions;
+
       meta.host = {
         inherit
           displays
           input
           name
           sourceControl
-          users
           ;
+        users = hostUsers;
       };
 
       inherit imports;
 
       networking.hostName = name;
       system.stateVersion = stateVersion;
+
+      programs.zsh.enable = true;
+
+      sops.secrets = lib.mapAttrs' (
+        userName: _:
+        lib.nameValuePair "hashed-password-${userName}" {
+          neededForUsers = true;
+        }
+      ) passwordUserSpecs;
+
+      users.users = lib.mapAttrs (
+        userName: spec:
+        {
+          name = spec.account.name;
+          home = spec.account.homeDirectory;
+          isNormalUser = true;
+          shell = pkgs.zsh;
+          extraGroups = [
+            "wheel"
+            "networkmanager"
+          ];
+        }
+        // lib.optionalAttrs (spec.needsPassword or false) {
+          hashedPasswordFile = config.sops.secrets."hashed-password-${userName}".path;
+        }
+      ) users;
+
+      home-manager.users = lib.mapAttrs (_: spec: {
+        imports = spec.homeImports;
+        meta = {
+          host = config.meta.host;
+          user = spec.account;
+        };
+        home = {
+          username = spec.account.name;
+          homeDirectory = spec.account.homeDirectory;
+          stateVersion = spec.stateVersion or stateVersion;
+        };
+      }) users;
     };
 
   mkCaddyReverseProxy =
@@ -65,62 +129,259 @@ let
     }:
     lib.attrByPath path null pkgs;
 
-  mkHostUser =
+  repo = {
+    contact.email = "mail@jelles.net";
+
+    services = {
+      actual = {
+        domain = "finance.jelles.net";
+        host = "127.0.0.1";
+        port = 3000;
+        url = "https://finance.jelles.net";
+      };
+
+      gitea = {
+        domain = "git.jelles.net";
+        host = "127.0.0.1";
+        port = 3001;
+        url = "https://git.jelles.net/";
+      };
+
+      radicale = {
+        domain = "radicale.jelles.net";
+        host = "127.0.0.1";
+        port = 5232;
+        url = "https://radicale.jelles.net/";
+      };
+
+      vaultwarden = {
+        domain = "vault.jelles.net";
+        host = "127.0.0.1";
+        port = 8100;
+        url = "https://vault.jelles.net";
+      };
+    };
+
+    theme = {
+      cursor = {
+        name = "phinger-cursors-light";
+        packagePath = [ "phinger-cursors" ];
+        size = 24;
+      };
+
+      kanagawa = {
+        gtkThemeName = "Kanagawa-BL-LB";
+        iconThemeName = "Kanagawa";
+        owner = "Fausto-Korpsvart";
+        repo = "Kanagawa-GKT-Theme";
+        rev = "55ca4ba249eba21f861b9866b71ab41bb8930318";
+        hash = "sha256-UdMoMx2DoovcxSp/zBZ3PRv/Qpj+prd0uPm1gmdak2E=";
+        version = "unstable-2025-10-23";
+      };
+    };
+  };
+
+  resolveUserTerminal =
     {
-      account,
-      homeImports,
-      needsPassword ? false,
-      stateVersion ? "24.05",
-    }:
-    {
-      config,
       pkgs,
-      ...
+      user,
     }:
     let
-      name = account.name;
+      package = resolvePackagePath {
-      primaryEmails = lib.filter (email: email.primary) (builtins.attrValues account.emails);
+        inherit pkgs;
+        path = user.terminalPackagePath;
+      };
+      hasPackage = package != null;
+      hasMainProgram = hasPackage && package ? meta.mainProgram;
+      mainProgram = if hasMainProgram then package.meta.mainProgram else null;
+      desktopId = if mainProgram == null then null else "${mainProgram}.desktop";
     in
     {
-      assertions = [
+      inherit
+        desktopId
+        hasMainProgram
+        hasPackage
+        mainProgram
+        package
+        ;
+
+      hasDesktopEntry =
+        desktopId != null && builtins.pathExists "${package}/share/applications/${desktopId}";
+
+      hasTerminfo = hasPackage && lib.elem "terminfo" package.outputs;
+    };
+
+  mkTerminalAssertions =
     {
-          assertion = builtins.length primaryEmails == 1;
+      terminal,
-          message = "User ${name} must define exactly one primary email entry.";
+      user,
+      requireDesktopEntry ? false,
+      requireKitty ? false,
+      requireMainProgram ? true,
+      requireTerminfo ? false,
+    }:
+    lib.flatten [
+      [
+        {
+          assertion = terminal.hasPackage;
+          message = "Unknown terminal package `${lib.showAttrPath user.terminalPackagePath}` for user `${user.name}`.";
         }
+      ]
+      (lib.optional requireMainProgram {
+        assertion = terminal.hasMainProgram;
+        message = "Terminal package `${lib.showAttrPath user.terminalPackagePath}` must define `meta.mainProgram`.";
+      })
+      (lib.optional requireDesktopEntry {
+        assertion = terminal.hasDesktopEntry;
+        message = "Terminal package `${lib.showAttrPath user.terminalPackagePath}` must provide `${terminal.desktopId}`.";
+      })
+      (lib.optional requireKitty {
+        assertion = terminal.hasMainProgram && terminal.mainProgram == "kitty";
+        message = "The terminal feature currently only supports kitty-specific Home Manager configuration.";
+      })
+      (lib.optional requireTerminfo {
+        assertion = terminal.hasTerminfo;
+        message = "Terminal package `${lib.showAttrPath user.terminalPackagePath}` must provide a `terminfo` output.";
+      })
     ];
 
-      programs.zsh.enable = true;
+  mapConfiguredAttrs =
+    {
+      settings,
+      schema,
+    }:
+    lib.filterAttrs (_: value: value != null) (
+      lib.mapAttrs (
+        _: spec:
+        let
+          value = lib.getAttrFromPath spec.path settings;
+        in
+        if value == null then
+          null
+        else if spec ? values then
+          spec.values.${value}
+        else if spec ? transform then
+          spec.transform value
+        else
+          value
+      ) schema
+    );
 
-      sops.secrets = lib.optionalAttrs needsPassword {
+  mkInputProfiles =
-        "hashed-password-${name}".neededForUsers = true;
+    input:
+    let
+      scrollMethodValues = {
+        edge = {
+          libinput = "edge";
+          niri = "edge";
+        };
+        "no-scroll" = {
+          libinput = "none";
+          niri = "no-scroll";
+        };
+        "on-button-down" = {
+          libinput = "button";
+          niri = "on-button-down";
+        };
+        "two-finger" = {
+          libinput = "twofinger";
+          niri = "two-finger";
+        };
       };
 
-      users.users.${name} = {
+      mouse = input.mouse;
-        name = account.name;
+      touchpad = input.touchpad;
-        home = account.homeDirectory;
+
-        isNormalUser = true;
+      libinputMouse = mapConfiguredAttrs {
-        shell = pkgs.zsh;
+        settings = mouse;
-        extraGroups = [
+        schema = {
-          "wheel"
+          accelProfile.path = [ "accelProfile" ];
-          "networkmanager"
+          accelSpeed = {
-        ];
+            path = [ "accelSpeed" ];
-      }
+            transform = toString;
-      // lib.optionalAttrs needsPassword {
+          };
-        hashedPasswordFile = config.sops.secrets."hashed-password-${name}".path;
+          leftHanded.path = [ "leftHanded" ];
+          middleEmulation.path = [ "middleEmulation" ];
+          naturalScrolling.path = [ "naturalScrolling" ];
+          scrollMethod = {
+            path = [ "scrollMethod" ];
+            values = lib.mapAttrs (_: value: value.libinput) scrollMethodValues;
+          };
+        };
       };
 
-      home-manager.users.${name} = {
+      libinputTouchpad = mapConfiguredAttrs {
-        imports = homeImports;
+        settings = touchpad;
-        meta = {
+        schema = {
-          host = config.meta.host;
+          accelProfile.path = [ "accelProfile" ];
-          user = account;
+          accelSpeed = {
+            path = [ "accelSpeed" ];
+            transform = toString;
           };
-        home = {
+          clickMethod = {
-          username = account.name;
+            path = [ "clickMethod" ];
-          homeDirectory = account.homeDirectory;
+            values = {
-          inherit stateVersion;
+              "button-areas" = "buttonareas";
+              clickfinger = "clickfinger";
             };
           };
+          disableWhileTyping.path = [ "disableWhileTyping" ];
+          leftHanded.path = [ "leftHanded" ];
+          middleEmulation.path = [ "middleEmulation" ];
+          naturalScrolling.path = [ "naturalScrolling" ];
+          scrollMethod = {
+            path = [ "scrollMethod" ];
+            values = lib.mapAttrs (_: value: value.libinput) scrollMethodValues;
+          };
+          tapping.path = [ "tapping" ];
+        };
+      };
+
+      niriMouse = mapConfiguredAttrs {
+        settings = mouse;
+        schema = {
+          "accel-profile".path = [ "accelProfile" ];
+          "accel-speed".path = [ "accelSpeed" ];
+          "left-handed".path = [ "leftHanded" ];
+          "middle-emulation".path = [ "middleEmulation" ];
+          "natural-scroll".path = [ "naturalScrolling" ];
+          "scroll-method" = {
+            path = [ "scrollMethod" ];
+            values = lib.mapAttrs (_: value: value.niri) scrollMethodValues;
+          };
+        };
+      };
+
+      niriTouchpad = mapConfiguredAttrs {
+        settings = touchpad;
+        schema = {
+          "accel-profile".path = [ "accelProfile" ];
+          "accel-speed".path = [ "accelSpeed" ];
+          "click-method".path = [ "clickMethod" ];
+          dwt.path = [ "disableWhileTyping" ];
+          "left-handed".path = [ "leftHanded" ];
+          "middle-emulation".path = [ "middleEmulation" ];
+          "natural-scroll".path = [ "naturalScrolling" ];
+          "scroll-method" = {
+            path = [ "scrollMethod" ];
+            values = lib.mapAttrs (_: value: value.niri) scrollMethodValues;
+          };
+          tap.path = [ "tapping" ];
+        };
+      };
+    in
+    {
+      hasPointerConfig = libinputMouse != { } || libinputTouchpad != { };
+
+      libinput = {
+        mouse = libinputMouse;
+        touchpad = libinputTouchpad;
+      };
+
+      niri = {
+        mouse = niriMouse;
+        touchpad = niriTouchpad;
+      };
     };
 in
 {
@@ -138,16 +399,30 @@ in
     readOnly = true;
   };
 
-  options.meta.lib.mkHostUser = lib.mkOption {
+  options.meta.lib.resolvePackagePath = lib.mkOption {
     type = lib.types.raw;
-    description = "Internal helper for explicit per-host user assembly.";
+    description = "Internal helper to resolve package attr paths against the local pkgs set.";
     internal = true;
     readOnly = true;
   };
 
-  options.meta.lib.resolvePackagePath = lib.mkOption {
+  options.meta.lib.resolveUserTerminal = lib.mkOption {
     type = lib.types.raw;
-    description = "Internal helper to resolve package attr paths against the local pkgs set.";
+    description = "Internal helper to resolve and validate user terminal metadata.";
+    internal = true;
+    readOnly = true;
+  };
+
+  options.meta.lib.mkTerminalAssertions = lib.mkOption {
+    type = lib.types.raw;
+    description = "Internal helper for terminal-related assertions shared across modules.";
+    internal = true;
+    readOnly = true;
+  };
+
+  options.meta.lib.mkInputProfiles = lib.mkOption {
+    type = lib.types.raw;
+    description = "Internal helper to normalize host input metadata for libinput and Niri.";
     internal = true;
     readOnly = true;
   };
@@ -159,12 +434,22 @@ in
     readOnly = true;
   };
 
+  options.meta.lib.repo = lib.mkOption {
+    type = lib.types.attrs;
+    description = "Internal shared repository metadata.";
+    internal = true;
+    readOnly = true;
+  };
+
   config.meta.lib = {
     inherit
+      mkInputProfiles
       mkCaddyReverseProxy
+      mkTerminalAssertions
       mkHost
-      mkHostUser
+      repo
       resolvePackagePath
+      resolveUserTerminal
       ;
   };
 }