diff --git a/recipes/wip/dev/blockchain/solidity/recipe.toml b/recipes/wip/dev/blockchain/solidity/recipe.toml
new file mode 100644
index 00000000..340b72d9
--- /dev/null
+++ b/recipes/wip/dev/blockchain/solidity/recipe.toml
@@ -0,0 +1,12 @@
+#TODO not compiled or tested
+# build instructions: https://docs.soliditylang.org/en/v0.8.33/installing-solidity.html#building-from-source
+[source]
+tar = "https://github.com/argotorg/solidity/releases/download/v0.8.33/solidity_0.8.33.tar.gz"
+[build]
+template = "cmake"
+cmakeflags = [
+    "-DPEDANTIC=OFF",
+]
+dependencies = [
+    "boost",
+]
diff --git a/recipes/wip/dev/blockchain/surfpool/recipe.toml b/recipes/wip/dev/blockchain/surfpool/recipe.toml
new file mode 100644
index 00000000..f43e77d8
--- /dev/null
+++ b/recipes/wip/dev/blockchain/surfpool/recipe.toml
@@ -0,0 +1,13 @@
+#TODO not compiled or tested
+[source]
+git = "https://github.com/txtx/surfpool"
+shallow_clone = true
+[build]
+template = "custom"
+dependencies = [
+    "openssl3",
+]
+script = """
+DYNAMIC_INIT
+cookbook_cargo_packages surfpool-cli
+"""
diff --git a/recipes/wip/dev/lang/dotnet8/recipe.toml b/recipes/wip/dev/lang/dotnet8/recipe.toml
new file mode 100644
index 00000000..54813cfa
--- /dev/null
+++ b/recipes/wip/dev/lang/dotnet8/recipe.toml
@@ -0,0 +1,22 @@
+#TODO missing script for building: https://github.com/dotnet/dotnet/tree/release/8.0.1xx#building
+# linux requirements: https://github.com/dotnet/runtime/blob/release/8.0/docs/workflow/requirements/linux-requirements.md
+# freebsd requirements: https://github.com/dotnet/runtime/blob/release/8.0/docs/workflow/requirements/freebsd-requirements.md#linux-environment
+# bootstraping: https://github.com/dotnet/source-build/blob/main/Documentation/bootstrapping-guidelines.md#building-for-new-os-using-a-rid-unknown-to-net
+[source]
+git = "https://github.com/dotnet/dotnet"
+branch = "release/8.0.1xx"
+shallow_clone = true
+[build]
+template = "custom"
+dependencies = [
+    "libicu",
+    "lttng-ust",
+    "openssl3",
+    "kerberos5",
+    "zlib",
+]
+dev-dependencies = [
+    "host:clang21",
+    "host:clang21.lld",
+    "host:llvm21.dev",
+]
diff --git a/recipes/wip/dev/wasm/binaryen/recipe.toml b/recipes/wip/dev/wasm/binaryen/recipe.toml
new file mode 100644
index 00000000..ebf83a03
--- /dev/null
+++ b/recipes/wip/dev/wasm/binaryen/recipe.toml
@@ -0,0 +1,12 @@
+#TODO not compiled or tested
+# build instructions: https://github.com/WebAssembly/binaryen#building
+[source]
+git = "https://github.com/WebAssembly/binaryen"
+rev = "version_125"
+shallow_clone = true
+[build]
+template = "cmake"
+cmakeflags = [
+    "-DBUILD_TESTS=OFF",
+    "-DBYN_ENABLE_ASSERTIONS=OFF",
+]
diff --git a/recipes/wip/dev/wasm/wabt/recipe.toml b/recipes/wip/dev/wasm/wabt/recipe.toml
new file mode 100644
index 00000000..57310d5d
--- /dev/null
+++ b/recipes/wip/dev/wasm/wabt/recipe.toml
@@ -0,0 +1,9 @@
+#TODO not compiled or tested
+# build instructions: https://github.com/WebAssembly/wabt#building-using-cmake-directly-linux-and-macos
+[source]
+tar = "https://github.com/WebAssembly/wabt/releases/download/1.0.39/wabt-1.0.39.tar.xz"
+[build]
+template = "cmake"
+cmakeflags = [
+    "-DBUILD_TESTS=OFF",
+]
diff --git a/recipes/wip/dev/web/emscripten/recipe.toml b/recipes/wip/dev/web/emscripten/recipe.toml
new file mode 100644
index 00000000..b4a3aec4
--- /dev/null
+++ b/recipes/wip/dev/web/emscripten/recipe.toml
@@ -0,0 +1,15 @@
+#TODO missing script for building: https://emscripten.org/docs/building_from_source/index.html
+[source]
+git = "https://github.com/emscripten-core/emscripten"
+rev = "5.0.0"
+shallow_clone = true
+[build]
+template = "custom"
+dev-dependencies = [
+    "host:nodejs24",
+]
+[package]
+dependencies = [
+    "llvm21-common",
+    "binaryen",
+]
diff --git a/recipes/wip/finance/bitcoin/btcpay-server/recipe.toml b/recipes/wip/finance/bitcoin/btcpay-server/recipe.toml
new file mode 100644
index 00000000..9d8bb1d3
--- /dev/null
+++ b/recipes/wip/finance/bitcoin/btcpay-server/recipe.toml
@@ -0,0 +1,13 @@
+#TODO missing script for building: https://github.com/btcpayserver/btcpayserver#how-to-build
+#TODO determine minimum dependencies
+# dependencies and docker container setup: https://github.com/btcpayserver/btcpayserver/blob/master/BTCPayServer.Tests/docker-compose.yml
+# configuration: https://docs.btcpayserver.org/Development/LocalDevelopment/
+[source]
+git = "https://github.com/btcpayserver/btcpayserver"
+rev = "v2.3.4"
+shallow_clone = true
+[build]
+template = "custom"
+dev-dependencies = [
+    "host:dotnet8",
+]
diff --git a/recipes/wip/net/remote/tigervnc/recipe.toml b/recipes/wip/net/remote/tigervnc/recipe.toml
new file mode 100644
index 00000000..514e1537
--- /dev/null
+++ b/recipes/wip/net/remote/tigervnc/recipe.toml
@@ -0,0 +1,16 @@
+#TODO not compiled or tested
+# build instructions: https://github.com/TigerVNC/tigervnc/blob/1.16-branch/BUILDING.txt
+[source]
+git = "https://github.com/TigerVNC/tigervnc"
+branch = "1.16-branch"
+shallow_clone = true
+[build]
+template = "cmake"
+dependencies = [
+    "zlib",
+    "pixman",
+    "fltk14",
+    "libjpeg",
+    #"gnutls3",
+    #"libnettle",
+]