diff --git a/app-proto/Trunk.toml b/app-proto/Trunk.toml
new file mode 100644
index 0000000..017deba
--- /dev/null
+++ b/app-proto/Trunk.toml
@@ -0,0 +1,2 @@
+[build]
+public_url = "./"
\ No newline at end of file
diff --git a/demo-summer-2025/.gitignore b/demo-summer-2025/.gitignore
new file mode 100644
index 0000000..ce287fc
--- /dev/null
+++ b/demo-summer-2025/.gitignore
@@ -0,0 +1,4 @@
+/dyna3/index.html
+/dyna3/dyna3-*.js
+/dyna3/dyna3-*.wasm
+/dyna3/main-*.css
\ No newline at end of file
diff --git a/tools/package-demo b/tools/package-demo
new file mode 100755
index 0000000..a3b7242
--- /dev/null
+++ b/tools/package-demo
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# set paths. this technique for getting the script location comes from
+# `mklement0` on Stack Overflow
+#
+#   https://stackoverflow.com/a/24114056
+#
+tools=$(dirname -- "$(readlink -f -- "$BASH_SOURCE")")
+dist_src="$tools/../app-proto/dist"
+dist_dest="$tools/../demo-summer-2025/dyna3"
+
+# remove the old hash-named files
+[ -e "$dist_dest"/dyna3-*.js ] && rm "$dist_dest"/dyna3-*.js
+[ -e "$dist_dest"/dyna3-*.wasm ] && rm "$dist_dest"/dyna3-*.wasm
+[ -e "$dist_dest"/main-*.css ] && rm "$dist_dest"/main-*.css
+
+# copy the distribution
+cp -r "$dist_src/." "$dist_dest"