diff --git a/recipes/wip/ai/nnx/recipe.toml b/recipes/wip/ai/nnx/recipe.toml
new file mode 100644
index 000000000..a89d357cd
--- /dev/null
+++ b/recipes/wip/ai/nnx/recipe.toml
@@ -0,0 +1,8 @@
+#TODO not compiled or tested
+[source]
+git = "https://github.com/webonnx/wonnx"
+[build]
+template = "custom"
+script = """
+cookbook_cargo_packages wonnx-cli
+"""
diff --git a/recipes/wip/demos/simdjson-rs/recipe.toml b/recipes/wip/demos/simdjson-rs/recipe.toml
new file mode 100644
index 000000000..52e8a645b
--- /dev/null
+++ b/recipes/wip/demos/simdjson-rs/recipe.toml
@@ -0,0 +1,8 @@
+#TODO not compiled or tested
+[source]
+git = "https://github.com/simd-lite/simd-json"
+[build]
+template = "custom"
+script = """
+cookbook_cargo_examples perf
+"""
diff --git a/recipes/wip/dev/not-perf/recipe.toml b/recipes/wip/dev/not-perf/recipe.toml
new file mode 100644
index 000000000..f7a52ed8c
--- /dev/null
+++ b/recipes/wip/dev/not-perf/recipe.toml
@@ -0,0 +1,5 @@
+#TODO not compiled or tested
+[source]
+git = "https://github.com/koute/not-perf"
+[build]
+template = "cargo"
diff --git a/recipes/wip/dev/rudra/recipe.toml b/recipes/wip/dev/rudra/recipe.toml
new file mode 100644
index 000000000..9a672bf30
--- /dev/null
+++ b/recipes/wip/dev/rudra/recipe.toml
@@ -0,0 +1,5 @@
+#TODO not compiled or tested
+[source]
+git = "https://github.com/sslab-gatech/Rudra"
+[build]
+template = "cargo"
diff --git a/recipes/wip/net/synapse-bt/recipe.toml b/recipes/wip/net/synapse-bt/recipe.toml
new file mode 100644
index 000000000..53ef1be26
--- /dev/null
+++ b/recipes/wip/net/synapse-bt/recipe.toml
@@ -0,0 +1,5 @@
+#TODO not compiled or tested
+[source]
+git = "https://github.com/Luminarys/synapse"
+[build]
+template = "cargo"