diff --git a/nixos/boxes/foureighty/default.nix b/nixos/boxes/foureighty/default.nix
index 7c4fbbe5..8833ee9e 100644
--- a/nixos/boxes/foureighty/default.nix
+++ b/nixos/boxes/foureighty/default.nix
@@ -15,6 +15,7 @@
     ../../gui
     ../../sway
     ../../git
+    ../../mercurial
   ];
 
   boot.kernelPackages = pkgs.linuxPackages_latest;
diff --git a/nixos/home-other-os.nix b/nixos/home-other-os.nix
index ee91aa97..072af58a 100644
--- a/nixos/home-other-os.nix
+++ b/nixos/home-other-os.nix
@@ -24,5 +24,6 @@ in
     imports = [
       ./home-manager/default.nix
       ./git/home.nix
+      ./mercurial/home.nix
     ];
   }
diff --git a/nixos/mercurial/default.nix b/nixos/mercurial/default.nix
new file mode 100644
index 00000000..2c4065d1
--- /dev/null
+++ b/nixos/mercurial/default.nix
@@ -0,0 +1,8 @@
+{ config, pkgs, lib, ... }:
+{
+  home-manager.users.cyryl = {...}: {
+    imports = [
+      ./home.nix
+    ];
+  };
+}
diff --git a/nixos/mercurial/home.nix b/nixos/mercurial/home.nix
new file mode 100644
index 00000000..f44c2bb1
--- /dev/null
+++ b/nixos/mercurial/home.nix
@@ -0,0 +1,15 @@
+{ config, pkgs, ... }:
+{
+  programs.mercurial = {
+    enable = true;
+    userName = "Cyryl Płotnicki";
+    userEmail = "cyplo@cyplo.net";
+    extraConfig = ''
+      [extensions]
+      hgext.convert=
+    '';
+    aliases =
+      {
+      };
+    };
+  }