diff --git a/.efrocachemap b/.efrocachemap
index 3878fa79..637e2b13 100644
--- a/.efrocachemap
+++ b/.efrocachemap
@@ -3932,24 +3932,24 @@
   "assets/build/windows/Win32/ucrtbased.dll": "https://files.ballistica.net/cache/ba1/b5/85/f8b6d0558ddb87267f34254b1450",
   "assets/build/windows/Win32/vc_redist.x86.exe": "https://files.ballistica.net/cache/ba1/1c/e1/4a1a2eddda2f4aebd5f8b64ab08e",
   "assets/build/windows/Win32/vcruntime140d.dll": "https://files.ballistica.net/cache/ba1/50/8d/bc2600ac9491f1b14d659709451f",
-  "build/prefab/full/linux_x86_64/debug/ballisticacore": "https://files.ballistica.net/cache/ba1/7d/82/ee9dbd4e5f7979376228d6953bf2",
-  "build/prefab/full/linux_x86_64/release/ballisticacore": "https://files.ballistica.net/cache/ba1/8b/1b/28311c0a6459e5d4fba5b8646f3e",
-  "build/prefab/full/linux_x86_64_server/debug/dist/ballisticacore_headless": "https://files.ballistica.net/cache/ba1/01/bb/1aa148fa278d31cb6674174b194f",
-  "build/prefab/full/linux_x86_64_server/release/dist/ballisticacore_headless": "https://files.ballistica.net/cache/ba1/98/7b/5f1bcd5a6ac1916ca35e10c28a30",
-  "build/prefab/full/mac_x86_64/debug/ballisticacore": "https://files.ballistica.net/cache/ba1/64/03/694933268214ba930b6f38b9c6c0",
+  "build/prefab/full/linux_x86_64/debug/ballisticacore": "https://files.ballistica.net/cache/ba1/f4/e6/4ea59bcfce20489d0e77a966c3b3",
+  "build/prefab/full/linux_x86_64/release/ballisticacore": "https://files.ballistica.net/cache/ba1/30/16/c6dddb2e2e968282449b856ae3b6",
+  "build/prefab/full/linux_x86_64_server/debug/dist/ballisticacore_headless": "https://files.ballistica.net/cache/ba1/f7/b3/f8a36118a64e09dcbc104e55718b",
+  "build/prefab/full/linux_x86_64_server/release/dist/ballisticacore_headless": "https://files.ballistica.net/cache/ba1/fa/82/f427d81a4cfbdef45111eb52d9cd",
+  "build/prefab/full/mac_x86_64/debug/ballisticacore": "https://files.ballistica.net/cache/ba1/39/f3/ec97a191bad46547b9a95477fb6e",
   "build/prefab/full/mac_x86_64/release/ballisticacore": "https://files.ballistica.net/cache/ba1/e1/49/88c92b0f65857a88f6eaaee04483",
-  "build/prefab/full/mac_x86_64_server/debug/dist/ballisticacore_headless": "https://files.ballistica.net/cache/ba1/a0/f6/39e7caccbbcd4cd442145c17a05f",
+  "build/prefab/full/mac_x86_64_server/debug/dist/ballisticacore_headless": "https://files.ballistica.net/cache/ba1/0c/1a/ee3ddea43c9f09ec7599ad0cb65e",
   "build/prefab/full/mac_x86_64_server/release/dist/ballisticacore_headless": "https://files.ballistica.net/cache/ba1/1d/c6/20d9325e37de411bc6fe3d41d503",
-  "build/prefab/full/windows_x86/debug/BallisticaCore.exe": "https://files.ballistica.net/cache/ba1/ab/14/4cf9664fb0de75dcb20b596ded74",
-  "build/prefab/full/windows_x86/release/BallisticaCore.exe": "https://files.ballistica.net/cache/ba1/c3/9a/39b182b32184ae177611078f03ff",
-  "build/prefab/full/windows_x86_server/debug/dist/ballisticacore_headless.exe": "https://files.ballistica.net/cache/ba1/70/e2/b993cf8dd5ede4d9e6ce42cd8c24",
-  "build/prefab/full/windows_x86_server/release/dist/ballisticacore_headless.exe": "https://files.ballistica.net/cache/ba1/60/03/166e19fae3db8f6e4b5c6a59a520",
-  "build/prefab/lib/linux_x86_64/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/e8/ed/62a752dbeeca8f5e99725d42e7e7",
+  "build/prefab/full/windows_x86/debug/BallisticaCore.exe": "https://files.ballistica.net/cache/ba1/83/95/86532e84266ded0279ee618acce3",
+  "build/prefab/full/windows_x86/release/BallisticaCore.exe": "https://files.ballistica.net/cache/ba1/43/4d/466aaf1ba2b1dc28163023634e3a",
+  "build/prefab/full/windows_x86_server/debug/dist/ballisticacore_headless.exe": "https://files.ballistica.net/cache/ba1/50/1a/bfa11f98817e3467dd1181281a95",
+  "build/prefab/full/windows_x86_server/release/dist/ballisticacore_headless.exe": "https://files.ballistica.net/cache/ba1/ae/f7/d206180841088f8cc03180c7c2cc",
+  "build/prefab/lib/linux_x86_64/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/cf/3d/192aa3600091cdc9222c964b0775",
   "build/prefab/lib/linux_x86_64/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/4c/a9/568023651355fdd0ce7a865c2872",
-  "build/prefab/lib/linux_x86_64_server/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/0d/25/2d023ef6acd6ae5aa09bf12158d3",
+  "build/prefab/lib/linux_x86_64_server/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/82/80/5c56c9f311d997f73ed3ed41eb39",
   "build/prefab/lib/linux_x86_64_server/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/42/be/79eec8bc7b2cc914cc6cb8ed0769",
-  "build/prefab/lib/mac_x86_64/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/83/00/c2e4c96a434c1ac16e9f8b8a401e",
-  "build/prefab/lib/mac_x86_64/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/03/94/b12016e90c0c650b3c3222bc2453",
-  "build/prefab/lib/mac_x86_64_server/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/f2/9e/fd1ff58204bf80d0b02edfa79293",
-  "build/prefab/lib/mac_x86_64_server/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/26/5c/a738eaa3e553bb00814f2376cb5a"
+  "build/prefab/lib/mac_x86_64/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/2a/88/61e3a78ac05273f732a7104d3f59",
+  "build/prefab/lib/mac_x86_64/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/e1/b5/ab658f3351fc9c4d450ce45a5c6d",
+  "build/prefab/lib/mac_x86_64_server/debug/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/0f/74/cee85a574a92c5aedaee9a88aef6",
+  "build/prefab/lib/mac_x86_64_server/release/libballisticacore_internal.a": "https://files.ballistica.net/cache/ba1/b5/ec/52a528896fe0ad021aa55f6630d5"
 }
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 5ff7949c..c6216dde 100644
--- a/Makefile
+++ b/Makefile
@@ -817,5 +817,12 @@ CM_BT_LC = $(shell echo $(CMAKE_BUILD_TYPE) | tr A-Z a-z)
 ballisticacore-cmake/.clang-format: .clang-format
 	@cd ballisticacore-cmake && ln -sf ../.clang-format .
 
+# Simple target for CI to build a binary but no assets/etc.
+_cmake-simple-ci-server-build:
+	mkdir -p build/cmake_ci
+	cd build/cmake_ci && cmake -DCMAKE_BUILD_TYPE=Debug -DHEADLESS=true \
+      ${PWD}/ballisticacore-cmake
+	cd build/cmake_ci && ${MAKE} -j${CPUS}
+
 # Tell make which of these targets don't represent files.
-.PHONY: _cmake-prefab-lib
+.PHONY: _cmake-simple-ci-server-build