diff --git a/deploy/deploy-test-server.sh b/deploy/deploy-test-server.sh
index ca80751..ff92dca 100755
--- a/deploy/deploy-test-server.sh
+++ b/deploy/deploy-test-server.sh
@@ -142,7 +142,13 @@ $sudo_cmd cp /opt/left4me/deploy/files/usr/local/lib/systemd/system/l4d2-build.s
 # CPU isolation via cgroup-v2 AllowedCPUs= drop-ins. Pin everything that
 # isn't a live game server to core 0; give game servers cores 1..N-1.
 # See docs/superpowers/specs/2026-05-09-l4d2-cpu-isolation-design.md.
-NPROC=$(nproc)
+# `nproc --all` reports installed processors regardless of the calling
+# shell's CPU affinity. Plain `nproc` honors Cpus_allowed of the calling
+# process, so on a host that already has the cpuset drop-ins applied
+# (system.slice → AllowedCPUs=0), the SSH login lands in user.slice with
+# AllowedCPUs=0 and `nproc` would return 1 — making subsequent deploys
+# wrongly think they're on a single-core box and skip CPU isolation.
+NPROC=$(nproc --all)
 SYSTEM_CPUS=${LEFT4ME_SYSTEM_CPUS:-0}
 if [ "${LEFT4ME_GAME_CPUS+x}" = x ]; then
     GAME_CPUS=$LEFT4ME_GAME_CPUS
diff --git a/l4d2host/pyproject.toml b/l4d2host/pyproject.toml
index c12b4a0..574cbea 100644
--- a/l4d2host/pyproject.toml
+++ b/l4d2host/pyproject.toml
@@ -17,7 +17,7 @@ dependencies = [
 l4d2ctl = "l4d2host.cli:app"
 
 [tool.setuptools]
-packages = ["l4d2host", "l4d2host.fs"]
+packages = ["l4d2host"]
 
 [tool.setuptools.package-dir]
 l4d2host = "."