diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 42376178..61442457 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -164,5 +164,7 @@ RUN apt-get update \
     && npm config -g set prefix /usr/local/share/npm-global \
     && sudo -u ${USERNAME} npm config -g set prefix /usr/local/share/npm-global
 
+ENV PATH=/usr/local/share/npm-global/bin:$PATH
+
 # switch back to dialog for any ad-hoc use of apt-get
-ENV DEBIAN_FRONTEND=dialog
\ No newline at end of file
+ENV DEBIAN_FRONTEND=dialog
diff --git a/.docker/files/supervisord.conf b/.docker/files/supervisord.conf
index 5ec038ca..b12b9371 100644
--- a/.docker/files/supervisord.conf
+++ b/.docker/files/supervisord.conf
@@ -1,5 +1,6 @@
 [supervisord]
 nodaemon=true
+pidfile=/var/run/supervisord.pid
 logfile=/dev/null
 logfile_maxbytes=0
 loglevel=debug
@@ -7,18 +8,30 @@ loglevel=debug
 [program:dbus]
 environment=HOME="/root",USER="root"
 command=/usr/bin/dbus
-redirect_stderr=true
 autorestart=true
 priority=100
 user=root
+stdout_logfile=/home/%(ENV_USER)s/logs/dbus.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=/home/%(ENV_USER)s/logs/dbus.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
 
 [program:xvfb]
 environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s"
 command=/usr/bin/Xvfb %(ENV_DISPLAY)s -screen 0 %(ENV_SCREEN_WIDTH)sx%(ENV_SCREEN_HEIGHT)sx%(ENV_SCREEN_DEPTH)s
-redirect_stderr=true
 autorestart=true
 priority=300
 user=%(ENV_USER)s
+stdout_logfile=/home/%(ENV_USER)s/.neko/logs/xvfb.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=/home/%(ENV_USER)s/.neko/logs/xvfb.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
 
 [program:pulseaudio]
 environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s",DISPLAY="%(ENV_DISPLAY)s"
@@ -26,6 +39,13 @@ command=/usr/bin/pulseaudio --disallow-module-loading -vvvv --disallow-exit --ex
 autorestart=true
 priority=300
 user=%(ENV_USER)s
+stdout_logfile=/home/%(ENV_USER)s/.neko/logs/pulseaudio.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=/home/%(ENV_USER)s/.neko/logs/pulseaudio.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
 
 [program:openbox]
 environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s",DISPLAY="%(ENV_DISPLAY)s"
@@ -33,6 +53,13 @@ command=/usr/bin/openbox --config-file /etc/neko/openbox.xml
 autorestart=true
 priority=300
 user=%(ENV_USER)s
+stdout_logfile=/home/%(ENV_USER)s/.neko/logs/openbox.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=/home/%(ENV_USER)s/.neko/logs/openbox.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
 
 [program:firefox-esr]
 environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s",DISPLAY="%(ENV_DISPLAY)s"
@@ -40,10 +67,24 @@ command=/usr/lib/firefox-esr/firefox-esr --display=%(ENV_DISPLAY)s --setDefaultB
 autorestart=true
 priority=400
 user=%(ENV_USER)s
+stdout_logfile=/home/%(ENV_USER)s/.neko/logs/firefox-esr.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=/home/%(ENV_USER)s/.neko/logs/firefox-esr.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
 
 [program:neko]
 environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s",DISPLAY="%(ENV_DISPLAY)s"
 command=/usr/bin/neko serve -d --static "/var/www"
 autorestart=true
 priority=800
-user=%(ENV_USER)s
\ No newline at end of file
+user=%(ENV_USER)s
+stdout_logfile=/home/%(ENV_USER)s/.neko/logs/neko.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=/home/%(ENV_USER)s/.neko/logs/neko.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
diff --git a/.docker/supervisord.conf b/.docker/supervisord.conf
index f2f68ba7..837dee62 100644
--- a/.docker/supervisord.conf
+++ b/.docker/supervisord.conf
@@ -1,24 +1,37 @@
 [supervisord]
 nodaemon=true
-#logfile=/dev/null
-#logfile_maxbytes=0
+pidfile=/var/run/supervisord.pid
+logfile=/dev/null
+logfile_maxbytes=0
 loglevel=debug
 
 [program:dbus]
 environment=HOME="/root",USER="root"
 command=/usr/bin/dbus
-redirect_stderr=true
 autorestart=true
 priority=100
 user=root
+stdout_logfile=./logs/dbus.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=./logs/dbus.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
 
 [program:xvfb]
 environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s"
 command=/usr/bin/Xvfb %(ENV_DISPLAY)s -screen 0 %(ENV_SCREEN_WIDTH)sx%(ENV_SCREEN_HEIGHT)sx%(ENV_SCREEN_DEPTH)s
-redirect_stderr=true
 autorestart=true
 priority=300
 user=%(ENV_USER)s
+stdout_logfile=./logs/xvfb.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=./logs/xvfb.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
 
 [program:pulseaudio]
 environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s",DISPLAY="%(ENV_DISPLAY)s"
@@ -26,6 +39,13 @@ command=/usr/bin/pulseaudio --disallow-module-loading -vvvv --disallow-exit --ex
 autorestart=true
 priority=300
 user=%(ENV_USER)s
+stdout_logfile=./logs/pulseaudio.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=./logs/pulseaudio.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
 
 [program:openbox]
 environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s",DISPLAY="%(ENV_DISPLAY)s"
@@ -33,10 +53,24 @@ command=/usr/bin/openbox --config-file /etc/neko/openbox.xml
 autorestart=true
 priority=300
 user=%(ENV_USER)s
+stdout_logfile=./logs/openbox.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=./logs/openbox.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
 
 [program:firefox-esr]
 environment=HOME="/home/%(ENV_USER)s",USER="%(ENV_USER)s",DISPLAY="%(ENV_DISPLAY)s"
 command=/usr/lib/firefox-esr/firefox-esr --display=%(ENV_DISPLAY)s --setDefaultBrowser -width %(ENV_SCREEN_WIDTH)s -height %(ENV_SCREEN_HEIGHT)s
 autorestart=true
 priority=400
-user=%(ENV_USER)s
\ No newline at end of file
+user=%(ENV_USER)s
+stdout_logfile=./logs/firefox-esr.log
+stdout_logfile_maxbytes=100MB
+stdout_logfile_backups=10
+redirect_stderr=true
+stderr_logfile=./logs/firefox-esr.err.log
+stderr_logfile_maxbytes=100MB
+stderr_logfile_backups=10
diff --git a/.docker/test b/.docker/test
index eac2f523..a85af6bb 100755
--- a/.docker/test
+++ b/.docker/test
@@ -20,13 +20,13 @@ fi
 sudo mkdir -p /var/run/dbus /etc/neko
 sudo rm -rf /var/run/dbus.pid
 
-sudo cp files/firefox-esr/neko.js /usr/lib/firefox-esr/mozilla.cfg
+sudo cp files/firefox/neko.js /usr/lib/firefox-esr/mozilla.cfg
 #sudo rm -f /usr/lib/firefox-esr/mozilla.cfg
 
-sudo cp files/firefox-esr/autoconfig.js /usr/lib/firefox-esr/defaults/pref/autoconfig.js
+sudo cp files/firefox/autoconfig.js /usr/lib/firefox-esr/defaults/pref/autoconfig.js
 #sudo rm -f /usr/lib/firefox-esr/defaults/pref/autoconfig.js
 
-sudo cp files/firefox-esr/policies.json /usr/lib/firefox-esr/distribution/policies.json
+sudo cp files/firefox/policies.json /usr/lib/firefox-esr/distribution/policies.json
 #sudo rm -f /usr/lib/firefox-esr/distribution/policies.json
 
 sudo cp files/dbus /usr/bin/dbus
@@ -63,12 +63,9 @@ export NEKO_BIND=:8080
 export NEKO_KEY=
 export NEKO_CERT=
 
-if [ -f /var/run/supervisord.pid ]; then
-  sudo rm -f /var/run/supervisord.pid
-fi
-
-if [ -f supervisord.log ]; then
-  sudo rm -f supervisord.log
+if [ -d logs ]; then
+  sudo rm -rf logs
 fi
+mkdir logs
 
 supervisord --configuration ./supervisord.conf
\ No newline at end of file
diff --git a/.github/demo.gif b/.github/demo.gif
deleted file mode 100644
index 7acde5ef..00000000
Binary files a/.github/demo.gif and /dev/null differ
diff --git a/Dockerfile b/Dockerfile
index f35f4a4e..041bdd8b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -69,13 +69,13 @@ RUN set -eux \
     # setup pulseaudio
     && mkdir -p /home/$USERNAME/.config/pulse/ \
     && echo "default-server=unix:/tmp/pulseaudio.socket" > /home/$USERNAME/.config/pulse/client.conf \
-    && chown -R $USERNAME:$USERNAME /home/$USERNAME \
     #
     # workaround for an X11 problem: http://blog.tigerteufel.de/?p=476
     && mkdir /tmp/.X11-unix && chmod 1777 /tmp/.X11-unix && chown $USERNAME /tmp/.X11-unix/ \
     #
     # make directories for neko
-    && mkdir -p /etc/neko /var/www \
+    && mkdir -p /etc/neko /var/www /home/$USERNAME/.neko/logs \
+    && chown -R $USERNAME:$USERNAME /home/$USERNAME \
     #
     # clean up
     && apt-get autoremove -y \