diff --git a/tooling.md b/tooling.md
index c2a33fa..c7824ae 100644
--- a/tooling.md
+++ b/tooling.md
@@ -5,11 +5,14 @@
 
 ## Building container images
 - debootstrap
-_Note: it allows importing docker rootfs's aswell, however it isn't recommended_
+_Note: it allows importing docker rootfs aswell, however it isn't recommended_
 
 ### Base images
 - Alpine - edge
 
+### Build setup
+- Overlay directories to reuse the base rootfs and add configs on top
+
 ### Build location
 - Servers _(prefferably)_
 - Local _(fallback)_
@@ -25,7 +28,7 @@ _Note: it allows importing docker rootfs's aswell, however it isn't recommended_
 - Likely small use of volumes _(live migration and snapshots allow easy migration)_
 _TODO: Check if volume snapshots are a thing_
 - Limited base image modification _(especially if it doesn't need any on-disk data)_
-- Port exposure needs to be defined manually on a per container basiss using proxy devices _see: [Proxy Protocol for Proxy device in LXD](https://discuss.linuxcontainers.org/t/performance-of-the-proxy-device-compared-to-traditional-iptables-rules/2052/6)_
+- Port exposure needs to be defined manually on a per container basiss using proxy devices, _see: [Proxy Protocol for Proxy device in LXD](https://discuss.linuxcontainers.org/t/performance-of-the-proxy-device-compared-to-traditional-iptables-rules/2052/6)_
 - Ports can be forwarded in the firewall with DNAT aswell
 	- Containers need IPv6 endpoint in DNAT mode