semi-final setup

install-dotnet10.fish

@@ -0,0 +1,31 @@
+#!/usr/bin/env fish
+
+# Installs the .NET 10 SDK on macOS using the official dotnet-install script
+
+set DOTNET_INSTALL_DIR "$HOME/.dotnet"
+
+echo "Downloading dotnet-install script..."
+curl -sSL https://dot.net/v1/dotnet-install.sh -o /tmp/dotnet-install.sh
+chmod +x /tmp/dotnet-install.sh
+
+echo "Installing .NET 10 SDK..."
+/tmp/dotnet-install.sh --channel 10.0 --install-dir "$DOTNET_INSTALL_DIR"
+
+if test $status -ne 0
+    echo "Error: .NET 10 SDK installation failed."
+    rm -f /tmp/dotnet-install.sh
+    exit 1
+end
+
+rm -f /tmp/dotnet-install.sh
+
+# Check if PATH already includes .dotnet
+if not contains "$DOTNET_INSTALL_DIR" $PATH
+    echo ""
+    echo "Add the following to your fish config to persist the PATH:"
+    echo "  fish_add_path $DOTNET_INSTALL_DIR"
+end
+
+echo ""
+echo "Done! Installed:"
+"$DOTNET_INSTALL_DIR/dotnet" --version