diff --git a/machines/ace/home.nix b/machines/ace/home.nix
index be7055f..3fa86f8 100644
--- a/machines/ace/home.nix
+++ b/machines/ace/home.nix
@@ -102,7 +102,14 @@
     pngquant
     gifsicle
     libwebp
+
+    # fonts
+    inter-nerdfont
+    nerd-fonts.iosevka
+    nerd-fonts.iosevka-term
+
   ];
+  fonts.fontconfig.enable = true;
   home.file = {
     "./.config/kitty/" = {
       source = ../../dotfiles/kitty;
@@ -140,6 +147,7 @@
       primary = true;
       thunderbird = {
         enable = true;
+        profiles = [ "mrflos" ];
       };
       imap = {
         host = "mail.infomaniak.com";
@@ -158,6 +166,7 @@
 
       thunderbird = {
         enable = true;
+        profiles = [ "mrflos" ];
       };
       imap = {
         host = "mail.infomaniak.com";
@@ -177,6 +186,7 @@
       primary = false;
       thunderbird = {
         enable = true;
+        profiles = [ "mrflos" ];
       };
       imap = {
         host = "mrflos.pw";
@@ -199,6 +209,7 @@
       primary = false;
       thunderbird = {
         enable = true;
+        profiles = [ "mrflos" ];
       };
       imap = {
         host = "mail.infomaniak.com";
@@ -218,6 +229,7 @@
       primary = false;
       thunderbird = {
         enable = true;
+        profiles = [ "mrflos" ];
       };
       imap = {
         host = "mail.infomaniak.com";
@@ -264,6 +276,16 @@
       settings = with builtins; fromTOML (readFile ../../dotfiles/starship/starship.toml);
     };
 
+    thunderbird = {
+      enable = true;
+      profiles = {
+        mrflos = {
+          isDefault = true;
+          #          name = "Florian Schmitt";
+        };
+      };
+    };
+
     zsh = {
       enable = true;
       autosuggestion.enable = true;
@@ -279,7 +301,7 @@
         kdenix = "nix run github:pjones/plasma-manager --extra-experimental-features nix-command --extra-experimental-features flakes > /home/mrflos/Developpements/nixos-config/modules/home-plasma.nix";
         icat = "kitty +kitten icat";
         nixedit = "cd $HOME/Code/nixos-config/ && $HOME/.nix-profile/bin/nvim .";
-        nixupdate = "nix-channel --update && home-manager switch";
+        nixupdate = "nix-channel --update && home-manager switch -b backup";
         nixclean = "sudo nix-env --delete-generations old --profile /nix/var/nix/profiles/system && sudo /nix/var/nix/profiles/system/bin/switch-to-configuration switch && sudo nix-store --gc";
         socks = "ssh -N -f -C -D 9090 mrflos@yunohost.yeswiki.net -p 6742";
         vi = "$HOME/.nix-profile/bin/nvim";