diff --git a/README.md b/README.md
index 98098d5..af44688 100644
--- a/README.md
+++ b/README.md
@@ -75,6 +75,42 @@ Mobile browsers will function, just keep in mind compatibility will be reduced e
 
 **We know about most of the oddities like crackling sound for some emulators, rendering issues, and games unreliably auto launching to fullscreen. In general full CD games on the Xbox web browser do not seem to work due to their size if you have a chd/pbp less than 450 megs it will run. Edge on Xbox has some kind of undocumented ram limitation of about a gigabyte. Until all emulators are transitioned to libretro cores the oddities of using self hosted EmulatorJS will not be something that can or should be solved using hacky workarounds interacting with obfuscated code. Just keep in mind these are full blown machine emulators running in Javascript in a browser, do not expect bare metal performance.**
 
+Mounting in existing rom directories can be achieved by pointing to the default folder structure, IE lets say you would like to mount your NES library:
+
+`-v /path/to/nes/roms:/data/nes/roms`
+
+The folder names are:
+* 3do
+* arcade
+* atari2600
+* atari7800
+* colecovision
+* doom
+* gb
+* gba
+* gbc
+* jaguar
+* lynx
+* msx
+* n64
+* nds
+* nes
+* ngp
+* odyssey2
+* pce
+* psx
+* sega32x
+* segaCD
+* segaGG
+* segaMD
+* segaMS
+* segaSaturn
+* segaSG
+* snes
+* vb
+* vectrex
+* ws
+
 ## Usage
 
 Here are some example snippets to help you get started creating a container.
@@ -246,6 +282,7 @@ Once registered you can define the dockerfile to use with `-f Dockerfile.aarch64
 
 ## Versions
 
+* **25.01.22:** - Allow users to mount in existing rom directories.
 * **14.01.22:** - Add profile paths and rebase to Alpine 3.15.
 * **04.01.22:** - Add headers needed for Threaded emulators.
 * **29.11.21:** - Add wasm mime type to NGINX.
diff --git a/readme-vars.yml b/readme-vars.yml
index f9218d2..683e2ca 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -53,8 +53,45 @@ app_setup_block: |
 
   **We know about most of the oddities like crackling sound for some emulators, rendering issues, and games unreliably auto launching to fullscreen. In general full CD games on the Xbox web browser do not seem to work due to their size if you have a chd/pbp less than 450 megs it will run. Edge on Xbox has some kind of undocumented ram limitation of about a gigabyte. Until all emulators are transitioned to libretro cores the oddities of using self hosted EmulatorJS will not be something that can or should be solved using hacky workarounds interacting with obfuscated code. Just keep in mind these are full blown machine emulators running in Javascript in a browser, do not expect bare metal performance.**
 
+  Mounting in existing rom directories can be achieved by pointing to the default folder structure, IE lets say you would like to mount your NES library:
+  
+  `-v /path/to/nes/roms:/data/nes/roms`
+
+  The folder names are:
+  * 3do
+  * arcade
+  * atari2600
+  * atari7800
+  * colecovision
+  * doom
+  * gb
+  * gba
+  * gbc
+  * jaguar
+  * lynx
+  * msx
+  * n64
+  * nds
+  * nes
+  * ngp
+  * odyssey2
+  * pce
+  * psx
+  * sega32x
+  * segaCD
+  * segaGG
+  * segaMD
+  * segaMS
+  * segaSaturn
+  * segaSG
+  * snes
+  * vb
+  * vectrex
+  * ws
+
 # changelog
 changelogs:
+  - { date: "25.01.22:", desc: "Allow users to mount in existing rom directories." }
   - { date: "14.01.22:", desc: "Add profile paths and rebase to Alpine 3.15." }
   - { date: "04.01.22:", desc: "Add headers needed for Threaded emulators." }
   - { date: "29.11.21:", desc: "Add wasm mime type to NGINX." }
diff --git a/root/etc/cont-init.d/20-config b/root/etc/cont-init.d/20-config
index c319254..9f7a9ae 100644
--- a/root/etc/cont-init.d/20-config
+++ b/root/etc/cont-init.d/20-config
@@ -32,3 +32,14 @@ cp /defaults/mime.types /etc/nginx/mime.types
 
 # nginx body cache
 chown -R abc:root /var/lib/nginx
+
+# allow users to mount in rom dirs
+DIRS='3do atari2600 atari7800 colecovision doom gba lynx n64 nes odyssey2 psx segaCD segaMD segaSaturn snes vb ws arcade atari5200 gb gbc jaguar msx nds ngp pce sega32x segaGG segaMS segaSG vectrex'
+for DIR in ${DIRS}; do
+  if [ -d "/data/${DIR}" ]; then
+    chown abc:abc "/data/${DIR}"
+  fi
+  if [ -d "/data/${DIR}/roms" ]; then
+    chown abc:abc "/data/${DIR}/roms"
+  fi
+done