home: add presenterm

Used for terminal-based slideshows with markdown. Wow your audience
with a cool terminal background blur effect not present in any other
mainstream tools.

home/presenterm.nix

@@ -0,0 +1,17 @@
+{ pkgs, ... }:
+
+let
+  inherit (builtins) toJSON;
+in
+{
+  home.packages = with pkgs; [ presenterm ];
+
+  xdg.configFile."presenterm/config.yaml".text = toJSON {
+    defaults = {
+      theme = "terminal-dark";
+      validate_overflows = "always";
+    };
+
+    options.implicit_slide_ends = true;
+  };
+}