diff --git a/hosts/common/base.nix b/hosts/common/base.nix
index e4a85f3..404ac1d 100644
--- a/hosts/common/base.nix
+++ b/hosts/common/base.nix
@@ -105,10 +105,11 @@
     options = "--delete-older-than 30d";
   };
 
-  # Convergence automatique depuis le repo public, sans netrc.
+  # Convergence automatique depuis le repo public, sans netrc. Cadence
+  # weekly (même format que oreo, plutôt que daily).
   system.autoUpgrade = {
     enable = true;
-    dates = "daily";
+    dates = "weekly";
     flake = "git+https://gitea.miniclic.net/Damien/Nixos_Fleet.git#usagers";
   };
 
diff --git a/hosts/common/desktop.nix b/hosts/common/desktop.nix
index 42d2fa9..955bb79 100644
--- a/hosts/common/desktop.nix
+++ b/hosts/common/desktop.nix
@@ -78,8 +78,84 @@
   };
 
   environment.systemPackages = with pkgs; [
+    # === Office/Notes ===
     libreoffice
+    pdfarranger
+    simple-scan
+
+    # === System tools ===
+    btop
+    unzip
+    screenfetch
+    tmux
+    fwupd
+    fwupd-efi
+    ncdu
+    gdu
+    hplip
+    gutenprint
+    cups
+    inxi
+    ntfs3g
+
+    # === Communication/Media ===
     thunderbird
+    ffmpeg
     vlc
+    mpv
+    strawberry
   ];
+
+  # Flatpak
+  services.flatpak.enable = true;
+  xdg.portal.enable = true;
+  xdg.portal.extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
+
+  systemd.services.flatpak-repo = {
+    wantedBy = [ "multi-user.target" ];
+    after = [ "network-online.target" ];
+    wants = [ "network-online.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+      RemainAfterExit = true;
+    };
+    path = [ pkgs.flatpak ];
+    script = ''
+      flatpak remote-add --if-not-exists flathub \
+        https://dl.flathub.org/repo/flathub.flatpakrepo
+    '';
+  };
+
+  systemd.services.flatpak-install = {
+    wantedBy = [ "multi-user.target" ];
+    after = [
+      "flatpak-repo.service"
+      "network-online.target"
+    ];
+    wants = [ "network-online.target" ];
+    requires = [ "flatpak-repo.service" ];
+    serviceConfig = {
+      Type = "oneshot";
+      RemainAfterExit = true;
+    };
+    path = [ pkgs.flatpak ];
+    script = ''
+      flatpak install -y flathub \
+      net.waterfox.waterfox \
+       eu.betterbird.Betterbird
+    '';
+  };
+
+  systemd.services.flatpak-update = {
+    wantedBy = [ "multi-user.target" ];
+    path = [ pkgs.flatpak ];
+    script = ''
+      flatpak update -y
+    '';
+  };
+
+  programs.appimage = {
+    enable = true;
+    binfmt = true;
+  };
 }