sunshine config and todo_rollover script

hosts/mainframe/sunshine/sunshine.conf

@@ -25,3 +25,16 @@ csrf_allowed_origins = https://10.0.0.2:47990,https://mainframe:47990,https://lo
 
 # Web UI reachable from the LAN, not just this machine.
 origin_web_ui_allowed = lan
+
+# Emulate an Xbox 360 pad regardless of what the client actually holds.
+# The default (auto) mirrors the client's controller, which for a DualSense
+# means Sunshine creates a PlayStation-style HID pad. Steam Big Picture claims
+# that pad through its own HID driver ("Controller 0 mapping uses xinput:
+# false" in ~/.local/share/Steam/logs/controller.txt) and hands input to games
+# only via the Steam Input API. Risk of Rain 2 uses Rewired/XInput and does not
+# speak Steam Input, so it saw a grabbed device and nothing else: the pad works
+# in the Steam UI and is dead the moment a game starts.
+#
+# x360 is the one type Wine's xinput maps directly, so Proton games get a
+# working pad whether or not Steam Input is in the way.
+gamepad = x360

hosts/mainframe/sway/headless.conf

@@ -29,6 +29,29 @@ exec systemctl --user import-environment WAYLAND_DISPLAY DISPLAY SWAYSOCK XDG_CU
 # though nobody is sitting at this machine. Without them the Desktop app
 # streams an empty screen with no way to open anything.
 set $mod Mod4
+
+# Floating, not tiling. Nobody sits at this machine and nothing here is a
+# workstation: the stream shows one thing at a time, usually Steam fullscreen.
+# Tiling only ever meant a dialog box stealing half the screen. Both criteria
+# are needed - app_id matches Wayland clients, class matches Xwayland ones,
+# and Steam is an X client.
+for_window [app_id=".*"] floating enable
+for_window [class=".*"]  floating enable
+
+# Title bars are the handle you grab with the mouse, so floating windows keep
+# a real border rather than the thin default.
+default_floating_border normal 2
+
+# Super+drag moves a window, Super+right-drag resizes it. Without this the
+# only way to move a window is the title bar, which a fullscreen app has none of.
+floating_modifier $mod normal
+
+# The stream forwards a mouse, so pointing and clicking is the primary way
+# around; these are for when the pointer is not enough.
+bindsym Alt+Tab       focus next
+bindsym Alt+Shift+Tab focus prev
+bindsym $mod+f        fullscreen
+
 bindsym $mod+Return exec kitty
 bindsym $mod+d      exec wofi --show drun
 bindsym $mod+Shift+q kill