docs: add troubleshooting, maintenance, various improvements and fixes

Signed-off-by: strawberry <strawberry@puppygock.gay>

debian/README.md

@@ -1,5 +1,4 @@
-conduwuit for Debian
-==================
+# conduwuit for Debian
 
 Installation
 ------------

debian/conduwuit.service

@@ -1,13 +1,18 @@
 [Unit]
 Description=conduwuit Matrix homeserver
+Documentation=https://conduwuit.puppyirl.gay/
 After=network-online.target
 
 [Service]
 DynamicUser=yes
-User=_conduwuit
-Group=_conduwuit
+User=conduwuit
+Group=conduwuit
 Type=notify
 
+Environment="CONDUWUIT_CONFIG=/etc/conduwuit/conduwuit.toml"
+
+ExecStart=/usr/sbin/conduwuit
+
 AmbientCapabilities=
 CapabilityBoundingSet=
 
@@ -39,14 +44,11 @@ SystemCallArchitectures=native
 SystemCallFilter=@system-service @resources
 SystemCallFilter=~@clock @debug @module @mount @reboot @swap @cpu-emulation @obsolete @timer @chown @setuid @privileged @keyring @ipc
 SystemCallErrorNumber=EPERM
-StateDirectory=matrix-conduit
+StateDirectory=conduwuit
 
 RuntimeDirectory=conduit
 RuntimeDirectoryMode=0750
 
-Environment="CONDUIT_CONFIG=/etc/conduwuit/conduwuit.toml"
-
-ExecStart=/usr/sbin/conduwuit
 Restart=on-failure
 RestartSec=5
 

debian/postinst

@@ -7,21 +7,21 @@ CONDUWUIT_DATABASE_PATH=/var/lib/conduwuit/
 
 case "$1" in
   configure)
-    # Create the `_conduwuit` user if it does not exist yet.
-    if ! getent passwd _conduwuit > /dev/null ; then
+    # Create the `conduwuit` user if it does not exist yet.
+    if ! getent passwd conduwuit > /dev/null ; then
       echo 'Adding system user for the conduwuit Matrix homeserver' 1>&2
       adduser --system --group --quiet \
         --home "$CONDUWUIT_DATABASE_PATH" \
         --disabled-login \
         --shell "/usr/sbin/nologin" \
         --force-badname \
-        _conduwuit
+        conduwuit
     fi
 
     # Create the database path if it does not exist yet and fix up ownership
     # and permissions.
     mkdir -p "$CONDUWUIT_DATABASE_PATH"
-    chown _conduwuit:_conduwuit -R "$CONDUWUIT_DATABASE_PATH"
+    chown conduwuit:conduwuit -R "$CONDUWUIT_DATABASE_PATH"
     chmod 700 "$CONDUWUIT_DATABASE_PATH"
     ;;
 esac