diff --git a/home/common/programs/3d.nix b/home/common/programs/3d.nix
index f51578a..ed80210 100644
--- a/home/common/programs/3d.nix
+++ b/home/common/programs/3d.nix
@@ -7,6 +7,7 @@
 {
   home.packages = with pkgs; [
     blender
+    openscad
     prusa-slicer
   ];
 }
diff --git a/home/common/programs/claude/CLAUDE.md b/home/common/programs/claude/CLAUDE.md
new file mode 100644
index 0000000..b2675c5
--- /dev/null
+++ b/home/common/programs/claude/CLAUDE.md
@@ -0,0 +1 @@
+Screenshots: stored in ~/downloads/screenshots, with date time in the filename
diff --git a/home/common/programs/claude/default.nix b/home/common/programs/claude/default.nix
index 1fdd57b..e70a161 100644
--- a/home/common/programs/claude/default.nix
+++ b/home/common/programs/claude/default.nix
@@ -11,4 +11,5 @@
 
   home.file.".claude/commands".source = ./commands;
   home.file.".claude/settings.json".source = ./settings.json;
+  home.file.".claude/CLAUDE.md".source = ./CLAUDE.md;
 }