diff --git a/Dockerfile b/Dockerfile
index 62a1ee5..5680144 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,9 @@ LABEL maintainer="Roxedus,thespad"
 
 # environment settings
 ARG READARR_BRANCH="nightly"
-ENV XDG_CONFIG_HOME="/config/xdg"
+ENV XDG_CONFIG_HOME="/config/xdg" \
+  COMPlus_EnableDiagnostics=0 \
+  TMPDIR=/run/readarr-temp
 
 RUN \
   echo "**** install packages ****" && \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 9105b7c..b71bd8c 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -11,7 +11,9 @@ LABEL maintainer="Roxedus,thespad"
 
 # environment settings
 ARG READARR_BRANCH="nightly"
-ENV XDG_CONFIG_HOME="/config/xdg"
+ENV XDG_CONFIG_HOME="/config/xdg" \
+  COMPlus_EnableDiagnostics=0 \
+  TMPDIR=/run/readarr-temp
 
 RUN \
   echo "**** install packages ****" && \
diff --git a/readme-vars.yml b/readme-vars.yml
index c2ab4d8..a4d72c5 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -33,8 +33,7 @@ param_usage_include_ports: true
 param_ports:
   - { external_port: "8787", internal_port: "8787", port_desc: "The port for the Readarr web UI", }
 
-# optional env variables
-opt_param_usage_include_env: false
+readonly_supported: true
 
 # application setup block
 app_setup_block_enabled: true
diff --git a/root/etc/s6-overlay/s6-rc.d/init-readarr-config/run b/root/etc/s6-overlay/s6-rc.d/init-readarr-config/run
index efea851..12adc03 100755
--- a/root/etc/s6-overlay/s6-rc.d/init-readarr-config/run
+++ b/root/etc/s6-overlay/s6-rc.d/init-readarr-config/run
@@ -1,6 +1,9 @@
 #!/usr/bin/with-contenv bash
 # shellcheck shell=bash
 
+mkdir -p /run/readarr-temp
+
 # permissions
 lsiown -R abc:abc \
-    /config
+    /config \
+    /run/readarr-temp