Take the user, host, and home from the machine, not this Frame

The local RDP login between krdp and the VNC bridge uses the account's
own name instead of "steamos", its certificate the hostname instead of
"steam-frame", and the ft_pointer driver installs under the user's home
instead of /home/steamos. The remote-access address already came from
the tailnet (tailscale0 and tailscaled's local API).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

pointer/driver/install.sh

@@ -12,7 +12,7 @@ root=$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)
 . "$root/scripts/_env.sh"
 frame="$root/scripts/frame.sh"
 src=$FRAME_REPO/pointer/driver
-dest=/home/steamos/.local/share/frametop/ft_pointer
+dest='$HOME/.local/share/frametop/ft_pointer'  # expanded on the Frame, in the commands below
 reg='/opt/steamvr/bin/linuxarm64/vrpathreg'
 
 case ${1:-install} in

session/remote-desktop.sh

@@ -16,7 +16,7 @@ mkdir -p -m 0700 "$creds"
 # takes it only on its command line, which other local users can read while it runs.
 (umask 077; head -c 24 /dev/urandom | base64 | tr -d '/+=' | cut -c1-20 > "$creds/password")
 if [ ! -s "$creds/cert.pem" ]; then
-  (umask 077; openssl req -x509 -newkey rsa:2048 -nodes -days 3650 -subj /CN=steam-frame \
+  (umask 077; openssl req -x509 -newkey rsa:2048 -nodes -days 3650 -subj "/CN=$(hostname)" \
     -keyout "$creds/key.pem" -out "$creds/cert.pem" 2>/dev/null)
 fi
 
@@ -30,5 +30,5 @@ done
 export XDG_RUNTIME_DIR=/run/user/$(id -u)
 exec ~/.local/bin/distrobox enter dev -- env XDG_RUNTIME_DIR="$runtime" WAYLAND_DISPLAY=wayland-0 QT_QPA_PLATFORM=wayland \
   krdpserver --plasma --address 127.0.0.1 --port "$port" \
-  -u steamos -p "$(cat "$creds/password")" \
+  -u "$(id -un)" -p "$(cat "$creds/password")" \
   --certificate "$creds/cert.pem" --certificate-key "$creds/key.pem"

session/vnc-bridge.sh

@@ -75,7 +75,7 @@ while kill -0 $xvnc 2>/dev/null; do
       xrandr --addmode VNC-0 "$size" 2>/dev/null || true
       xrandr --fb "$size" --output VNC-0 --mode "$size"
     fi
-    xfreerdp /v:127.0.0.1:"$rdp_port" /u:steamos /p:"$(cat "$creds/password")" \
+    xfreerdp /v:127.0.0.1:"$rdp_port" /u:"$(id -un)" /p:"$(cat "$creds/password")" \
       /cert:ignore /size:"${ww}x${wh}" -decorations +clipboard >/dev/null 2>&1 &
     rdp=$!
     # FreeRDP takes no negative position, so move its window once it is up.