diff --git a/vm.sh b/vm.sh
index e839032..f1ab4ea 100755
--- a/vm.sh
+++ b/vm.sh
@@ -14,8 +14,8 @@ echo
 
 # Set up repositories  
 cat <<EOF >/etc/apk/repositories
-http://dl-cdn.alpinelinux.org/alpine/v3.13/main
-http://dl-cdn.alpinelinux.org/alpine/v3.13/community
+http://dl-cdn.alpinelinux.org/alpine/v3.15/main
+http://dl-cdn.alpinelinux.org/alpine/v3.15/community
 EOF
 
 # Install disk management tools  
@@ -35,10 +35,6 @@ p
 2
 
 
-t
-2
-8e
-w
 EOF
 
 # Set up partition encryption
@@ -72,12 +68,8 @@ UUID=${BOOT_UUID}   /boot   ext4    rw,noatime,data=ordered   0   2
 EOF
 echo "system UUID=${CRYPT_UUID} none luks" >/mnt/etc/crypttab
 
-# Rebuild initfs
-sed -i 's/lvm/lvm cryptsetup/' /mnt/etc/mkinitfs/mkinitfs.conf
-mkinitfs -c /mnt/etc/mkinitfs/mkinitfs.conf -b /mnt $(ls /mnt/lib/modules)
-
 # Update extlinux (ignore the errors)
-sed -i "s/rootfstype=ext4/rootfstype=ext4 cryptroot=UUID=${CRYPT_UUID} cryptdm=system/" /mnt/etc/update-extlinux.conf
+sed -i "s/crypdm=root/cryptdm=system/" /mnt/etc/update-extlinux.conf
 chroot /mnt update-extlinux
 sed -i 's/overwrite=1/overwrite=0/' /mnt/etc/update-extlinux.conf
 
@@ -89,11 +81,16 @@ apk --no-cache add apache2-utils gettext
 wget https://repo.spotter.cz/vm.tar.gz -O - | tar xzf - -C /mnt
 envsubst </mnt/boot/extlinux.conf >/mnt/boot/extlinux.conf.new
 mv /mnt/boot/extlinux.conf.new /mnt/boot/extlinux.conf
-chroot /mnt apk --no-cache add ca-certificates curl e2fsprogs-extra gettext iptables kbd-misc logrotate postfix nginx openssh-server openssh-sftp-server util-linux podman@edgecommunity spoc@spotter vmmgr@spotter
+chroot /mnt apk --no-cache add ca-certificates curl e2fsprogs-extra gettext kbd-misc logrotate postfix nginx openssh-server openssh-sftp-server util-linux podman spoc@spotter vmmgr@spotter
 chroot /mnt newaliases
-for SERVICE in consolefont crond iptables networking nginx ntpd podman postfix spoc swap urandom vmmgr; do
+
+# Enable services
+for SERVICE in cgroups consolefont crond networking nginx ntpd postfix spoc swap urandom vmmgr; do
     ln -s /etc/init.d/${SERVICE} /mnt/etc/runlevels/boot
 done
+
+# Configure spoc and vmmgr
+chroot /mnt adduser -D spoc
 ADMINPWD=$(htpasswd -bnBC 10 '' "${ENCPWD}" | tr -d ':\n' | sed 's/$2y/$2b/') envsubst </mnt/etc/vmmgr/config.json >/mnt/etc/vmmgr/config.json.new
 mv /mnt/etc/vmmgr/config.json.new /mnt/etc/vmmgr/config.json
 
diff --git a/vm/etc/apk/repositories b/vm/etc/apk/repositories
index 1cbf4d0..3ef1ecf 100644
--- a/vm/etc/apk/repositories
+++ b/vm/etc/apk/repositories
@@ -1,5 +1,3 @@
-http://dl-cdn.alpinelinux.org/alpine/v3.13/main
-http://dl-cdn.alpinelinux.org/alpine/v3.13/community
-@edge http://dl-cdn.alpinelinux.org/alpine/edge/main
-@edgecommunity http://dl-cdn.alpinelinux.org/alpine/edge/community
-@spotter https://repo.spotter.cz/alpine/v3.13/apk
+http://dl-cdn.alpinelinux.org/alpine/v3.15/main
+http://dl-cdn.alpinelinux.org/alpine/v3.15/community
+@spotter https://repo.spotter.cz/alpine/v3.15/apk
diff --git a/vm/etc/conf.d/iptables b/vm/etc/conf.d/iptables
deleted file mode 100644
index fec1ad5..0000000
--- a/vm/etc/conf.d/iptables
+++ /dev/null
@@ -1,14 +0,0 @@
-# /etc/conf.d/iptables
-
-# Location in which iptables initscript will save set rules on
-# service shutdown
-IPTABLES_SAVE="/etc/iptables/rules-save"
-
-# Options to pass to iptables-save and iptables-restore
-SAVE_RESTORE_OPTIONS="-c"
-
-# Save state on stopping iptables
-SAVE_ON_STOP="no"
-
-# Enable/disable IPv4 forwarding with the rules
-IPFORWARD="yes"
diff --git a/vm/etc/iptables/rules-save b/vm/etc/iptables/rules-save
deleted file mode 100644
index 8d489a6..0000000
--- a/vm/etc/iptables/rules-save
+++ /dev/null
@@ -1,7 +0,0 @@
-*nat
-:PREROUTING ACCEPT [0:0]
-:INPUT ACCEPT [0:0]
-:OUTPUT ACCEPT [0:0]
-:POSTROUTING ACCEPT [0:0]
-[0:0] -A POSTROUTING -o eth0 -j MASQUERADE
-COMMIT
diff --git a/vm/etc/subgid b/vm/etc/subgid
new file mode 100644
index 0000000..11d22d2
--- /dev/null
+++ b/vm/etc/subgid
@@ -0,0 +1 @@
+spoc:100000:65536
diff --git a/vm/etc/subuid b/vm/etc/subuid
new file mode 100644
index 0000000..11d22d2
--- /dev/null
+++ b/vm/etc/subuid
@@ -0,0 +1 @@
+spoc:100000:65536