diff --git a/README.md b/README.md
index 8cb839f..05a5dd1 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,7 @@ easily host your own [Secure ScuttleButt (SSB)](https://www.scuttlebutt.nz) pub!
   - [install .deb package](#install-deb-package)
   - [configure ssb server](#configure-ssb-server)
 - [command and control](#command-and-control)
+  - [whoami](#whoami)
   - [publish to feed](#publish-to-feed)
   - [create invites](#create-invites)
   - [stop, start, restart service](#stop-start-restart-service)
@@ -25,20 +26,76 @@ easily host your own [Secure ScuttleButt (SSB)](https://www.scuttlebutt.nz) pub!
 
 ### boot Debian server
 
+in the cloud, or in your home, spin up a [Debian](https://www.debian.org/) (or Ubuntu) server.
+
 ### download .deb package
 
+```shell
+wget TODO
+```
+
 ### install .deb package
 
+```shell
+sudo dpkg -i ssb-pub_*_amd64.deb
+```
+
 ### configure ssb server
 
+```shell
+sudo nano /etc/default/ssb
+```
+
+```txt
+SSB_PORT=8008
+SSB_WS_PORT=8989
+```
+
 ## command and control
 
+### whoami
+
+```shell
+sudo -u ssb ssb-cli call whoami
+```
+
+or to save as a variable:
+
+(with `jq` installed)
+
+```shell
+ID=$(sudo -u ssb ssb-cli call whoami | jq -r .id)
+```
+
 ### publish to feed
 
+```shell
+sudo -u ssb ssb-cli publish post "your message"
+```
+
+```shell
+sudo -u ssb ssb-cli publish about --name "wiggle.land" "${ID}"
+```
+
 ### create invites
 
+the following command creates an invite with 100 uses (number can be changed):
+
+```shell
+sudo -u ssb ssb-cli invite create --uses 100
+```
+
+take the output, and replace [::] with the IP address or domain name pointing to the server.
+
 ### start, stop, restart service
 
+```shell
+sudo systemctl status ssb-server
+sudo systemctl stop ssb-server
+sudo systemctl start ssb-server
+sudo systemctl restart ssb-server
+```
+
 ## upgrading
 
 ### migrating to v4
diff --git a/build.sh b/build.sh
index dc45f5a..bff6e6f 100755
--- a/build.sh
+++ b/build.sh
@@ -5,7 +5,7 @@ set -o pipefail
 
 DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 
-PKG_VERSION="0.0.1"
+PKG_VERSION="4.0.0-pre.1"
 
 DEB_SRC_DIR="${DIR}/deb"
 DEB_BUILD_DIR="/tmp/ssb-pub"
@@ -35,6 +35,8 @@ do
   env GOOS=linux GOARCH=${PKG_ARCH} go build ./cmd/sbotcli
   echo "compiling go-sbot"
   env GOOS=linux GOARCH=${PKG_ARCH} go build ./cmd/go-sbot
+  echo "compiling ssb-offset-converter"
+  env GOOS=linux GOARCH=${PKG_ARCH} go build ./cmd/ssb-offset-converter
   cd "${DIR}"
 
   ###
@@ -78,6 +80,9 @@ do
   cp "${GO_SSB_DIR}/sbotcli" "${DEB_BUILD_DIR}/usr/bin/ssb-cli-go"
   chmod 755 "${DEB_BUILD_DIR}/usr/bin/ssb-cli-go"
   sudo chown root:root "${DEB_BUILD_DIR}/usr/bin/ssb-cli-go"
+  cp "${GO_SSB_DIR}/ssb-offset-converter" "${DEB_BUILD_DIR}/usr/bin/ssb-offset-converter"
+  chmod 755 "${DEB_BUILD_DIR}/usr/bin/ssb-offset-converter"
+  sudo chown root:root "${DEB_BUILD_DIR}/usr/bin/ssb-offset-converter"
 
   # copy wrapper scripts
   cp "${DEB_SRC_DIR}/ssb-server" "${DEB_BUILD_DIR}/usr/bin/ssb-server"
diff --git a/deb/postinst b/deb/postinst
index bdd25a7..b1722c8 100644
--- a/deb/postinst
+++ b/deb/postinst
@@ -1,15 +1,13 @@
 #!/bin/sh
 set -e
 
-# create user which go-sbot runs as
+# create user for ssb to run as
 adduser --quiet --system --group --no-create-home ssb
 
-# set permissions
-chown ssb:ssb /usr/bin/ssb-server
-chown ssb:ssb /usr/bin/ssb-cli
-chmod u+s /usr/bin/ssb-cli
-
+# create ssb data dir
 mkdir -p /var/lib/ssb
+
+# set permissions
 chown ssb:ssb /var/lib/ssb
 
 # Automatically added by cargo-deb