diff --git a/README.md b/README.md
index 827a173..2774571 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,8 @@ Then and adjust the following files:
 Build [de-p1st-repo](pkg/de-p1st-repo) ...
 
 ```shell
-sudo docker-compose run makepkg de-p1st-repo
+cd build-pkg
+sudo docker-compose run --rm makepkg de-p1st-repo
 ```
 
 ... and install it on your build-machine and your mirror-server:
diff --git a/build-archiso/docker-compose.yml b/build-archiso/docker-compose.yml
index 1935535..f79d6f2 100644
--- a/build-archiso/docker-compose.yml
+++ b/build-archiso/docker-compose.yml
@@ -15,4 +15,4 @@ services:
     #stdin_open: true # docker run -i
     #tty: true        # docker run -t
 
-    privileged: true
+    privileged: true # allow container to mount (-> airootfs)
diff --git a/pkg/de-p1st-installer/README.md b/pkg/de-p1st-installer/README.md
index 5c5e453..e62914c 100644
--- a/pkg/de-p1st-installer/README.md
+++ b/pkg/de-p1st-installer/README.md
@@ -2,23 +2,28 @@
 
 ## Running the installer
 
-### via custom livemedium
+### Via custom livemedium
 
-1) Build the ISO: Run script found in the base of this git repo:
+1) Build custom [archiso](https://gitlab.archlinux.org/archlinux/archiso) live medium using docker in privileged mode:
 
 ```shell
-./build-archiso/run.sh
+# dependencies: docker, docker-compose
+
+cd build-archiso
+sudo docker-compose run archiso
+ls out/out_dir/*.iso
 ```
 
-2) Boot into the live medium and (optionally) run `screen` (to be able to scroll back in case of any errors)
-3) Adjust `/etc/de-p1st-installer/installer.cfg` (or delete for interactive mode)
-4) Run the installer
+2) Boot into the live medium
+3) (Optional) Run `screen` (to be able to scroll back in case of any errors)
+4) Adjust `/etc/de-p1st-installer/installer.cfg` (or delete it for interactive mode)
+5) Run the installer
 
 ```shell
 de-p1st-installer
 ```
 
-### via official livemedium
+### Via official livemedium
 
 1) Boot into the live medium from [archlinux.org](https://archlinux.org)
 2) Add to `/etc/pacman.conf`:
@@ -29,11 +34,18 @@ SigLevel = Optional TrustAll
 Server = https://arch.p1st.de
 ```
 
-3) (Optional) Start screen with long scrollback history (to be able to scroll back in case of any errors)
+3) (Optional) Install screen with a `screenrc` configuration file for long scrollback history
    
 ```shell
 pacman -Sy
 pacman -S de-p1st-screen
-screen
 ```
-4) Continue with step (3) of "via custom livemedium"
+
+4) Install `de-p1st-installer` to get the install script
+   
+```shell
+pacman -Sy
+pacman -S de-p1st-installer
+```
+
+5) Continue with step (3) of "Via custom livemedium"