Dangling commit with lots of changes

Importantly it restructures the example I'm using the most and
it fixes a index access issue in the collision

1 files changed, 33 insertions, 0 deletions

diff --git a/examples/poiseulle_particles_channel_2d/.nix/derivation.nix b/examples/poiseulle_particles_channel_2d/.nix/derivation.nix
new file mode 100644
index 0000000..58c45d5
--- /dev/null
+++ b/examples/poiseulle_particles_channel_2d/.nix/derivation.nix
@@ -0,0 +1,33 @@
+{ lib
+, stdenv
+, scons
+, clang-tools
+, forstio
+, pname
+, version
+, kel-lbm
+}:
+
+stdenv.mkDerivation {
+	pname = pname + "-examples-" + "poiseulle_particles_channel_2d";
+	inherit version;
+  src = ./..;
+
+  nativeBuildInputs = [
+    scons
+    clang-tools
+  ];
+
+  buildInputs = [
+    forstio.core
+    forstio.async
+    forstio.codec
+    forstio.codec-unit
+		forstio.codec-json
+		kel-lbm
+  ];
+
+	preferLocalBuild = true;
+
+  outputs = [ "out" "dev" ];
+}