diff --git a/common/nvim/init.lua b/common/nvim/init.lua
index 858c11b..cf5783c 100644
--- a/common/nvim/init.lua
+++ b/common/nvim/init.lua
@@ -489,6 +489,7 @@ require("lazy").setup({
 				html = { filetypes = { "html", "twig", "hbs" } },
 				templ = { filetypes = { "templ" } },
 				nil_ls = {},
+				ocamllsp = {},
 				-- ... etc. See `:help lspconfig-all` for a list of all the pre-configured LSPs
 				--
 				-- Some languages (like typescript) have entire language plugins that can be useful:
diff --git a/hosts/default/configuration.nix b/hosts/default/configuration.nix
index 9b0dbdd..59478a4 100644
--- a/hosts/default/configuration.nix
+++ b/hosts/default/configuration.nix
@@ -20,7 +20,12 @@
 	hardware.enableRedistributableFirmware = true;
 	hardware.enableAllFirmware = true;
 
-	networking.hostName = "lambdaOS"; # Define your hostname.
+	networking = {
+		hostName = "lambdaOS"; # Define your hostname.
+		extraHosts = ''
+			::1 noa.voorwaarts.nl
+		'';
+	};
 	# networking.wireless.enable = true;	# Enables wireless support via wpa_supplicant.
 
 	# Configure network proxy if necessary
@@ -219,8 +224,8 @@
 	};
 
 	# Open ports in the firewall.
-	networking.firewall.allowedTCPPorts = [ 2000 ];
-	networking.firewall.allowedUDPPorts = [ 2000 ];
+	networking.firewall.allowedTCPPorts = [ 80 443 ];
+	networking.firewall.allowedUDPPorts = [ 80 443 ];
 	# Or disable the firewall altogether.
 	# networking.firewall.enable = false;
 
diff --git a/hosts/default/home.nix b/hosts/default/home.nix
index 14995f5..9e71ba8 100644
--- a/hosts/default/home.nix
+++ b/hosts/default/home.nix
@@ -61,6 +61,7 @@
 		# Programming langs
 		go
 		nodejs
+		opam
 	];