Files
Omarchy-Stream/lib/headless.sh
Levi Woodard 16e2465cf5 Self-healing headless, working JARVIS install fixes, public-safe docs
This bundles every fix we made debugging the first real install plus a
comprehensive troubleshooting reference. Working tree is now PII-safe for
public distribution: hostname-based default mode is driven by a HEADLESS_HOSTS
env var instead of a hardcoded literal; docs use placeholders for hostnames
and LAN IPs.

Self-healing headless management
- bin/sunshine-prestart.sh (new): runs as systemd ExecStartPre. Resolves the
  Hyprland instance signature from XDG_RUNTIME_DIR/hypr when systemd-user env
  didn't propagate it. Reduces to exactly one headless output by keeping the
  lowest-numbered HEADLESS-N and removing the rest. Rewrites the managed
  sunshine.conf's output_name line to match the surviving name — Hyprland's
  HEADLESS-N counter is monotonic and ignores the optional name argument to
  'output create headless', so without active sync output_name drifts off
  HEADLESS-1 after the first restart cycle.
- bin/sunshine-stream-do.sh: dropped the hardcoded MON=HEADLESS-1. Now
  discovers whatever HEADLESS-* exists via jq. Resize and workspace migration
  target the actual output.
- bin/sunshine-stream-undo.sh: reads the headless name from a state file the
  do-script wrote, with discovery fallback. Stops removing the output between
  sessions — the create/destroy race caused fatal startup encoder errors on
  the next Sunshine restart.
- files/headless-prestart.conf, files/sunshine.service: ExecStartPre now
  points at the new prestart script.
- lib/headless.sh: install_headless_hooks now installs all three scripts.
  New install_headless_prestart_dropin resolves the actual systemd unit name
  (sunshine.service vs app-dev.lizardbyte.app.Sunshine.service) and lands the
  drop-in under <unit>.service.d/.

Firewall detection
- lib/firewall.sh: _ufw_active now uses 'systemctl is-active ufw.service'
  instead of 'ufw status'. The latter requires root to read /etc/ufw state,
  so the unprivileged probe returned false and we silently skipped opening
  Sunshine's ports on hosts where ufw was actively dropping packets.

Service unit fallbacks
- lib/service.sh: ensure_sunshine_unit_present looks for sunshine.service in
  every systemd-user path first; falls back to the reverse-DNS AUR-source
  unit name; last resort drops a repo-provided fallback unit. systemctl
  reset-failed before each restart so a previous start-limit-hit doesn't
  immediately reject the new attempt.

Preflight
- lib/preflight.sh: new preflight_headless step that, only when STREAM_MODE
  is headless, surfaces missing hyprctl / jq / Hyprland reachability before
  install proceeds.

Public-safe defaults
- install.sh: streaming-mode default is now driven by HEADLESS_HOSTS env var
  (comma-separated, case-insensitive). Unset by default — every host gets
  mirror mode unless its hostname is listed or --headless is passed
  explicitly. Past versions hardcoded a specific hostname.
- README.md: replaced JARVIS-specific examples with HEADLESS_HOSTS prose.

Docs
- docs/TROUBLESHOOTING.md (new): comprehensive failure-mode reference. Every
  issue hit during the first end-to-end install, in order, with symptom →
  cause → fix → permanent prevention. Plus a "Custom keybinding to escape
  Moonlight" section and an outstanding-followups punch list (1Password
  black-rectangle workarounds, hypridle inhibit during stream, busiest-
  workspace auto-switch, jarvis.lan DNS, 1Password SSH agent timeouts).
2026-05-18 16:52:41 -06:00

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2.3 KiB
Bash

#!/usr/bin/env bash
# Set up headless streaming mode: install prep-cmd hook scripts into a stable
# location and ensure they're executable. The actual sunshine.conf entries
# (capture=wlr, output_name=HEADLESS-1, global_prep_cmd=[...]) are written
# by lib/config.sh.
HEADLESS_BIN_DIR="$HOME/.local/share/omarchy-moonlight/bin"
DO_SCRIPT="$HEADLESS_BIN_DIR/sunshine-stream-do.sh"
UNDO_SCRIPT="$HEADLESS_BIN_DIR/sunshine-stream-undo.sh"
export DO_SCRIPT UNDO_SCRIPT
install_headless_hooks() {
# Install hook scripts to ~/.local/share so they don't disappear if the
# repo gets moved or deleted. Sunshine's config will reference these stable paths.
mkdir -p "$HEADLESS_BIN_DIR"
install -m 0755 "$SCRIPT_DIR/bin/sunshine-stream-do.sh" "$DO_SCRIPT"
install -m 0755 "$SCRIPT_DIR/bin/sunshine-stream-undo.sh" "$UNDO_SCRIPT"
install -m 0755 "$SCRIPT_DIR/bin/sunshine-prestart.sh" "$HEADLESS_BIN_DIR/sunshine-prestart.sh"
ok "Installed prep-cmd + prestart hooks to $HEADLESS_BIN_DIR"
}
# Install a systemd-user drop-in that pre-creates HEADLESS-1 before Sunshine
# starts, so the encoder probe at startup sees a valid Wayland output. Without
# this, Sunshine reports a fatal "Unable to find display or encoder during
# startup" on every restart, even though streaming works once a client connects.
install_headless_prestart_dropin() {
local dropin_src="$SCRIPT_DIR/files/headless-prestart.conf"
if [[ ! -f "$dropin_src" ]]; then
err "Drop-in source missing: $dropin_src"
return 1
fi
# Resolve the actual unit name. Prefer sunshine.service when present (alias
# or sunshine-bin); fall back to the AUR source pkg's reverse-DNS name.
local unit=""
for u in sunshine.service app-dev.lizardbyte.app.Sunshine.service; do
if systemctl --user list-unit-files "$u" >/dev/null 2>&1 \
&& systemctl --user cat "$u" >/dev/null 2>&1; then
unit="$u"
break
fi
done
if [[ -z "$unit" ]]; then
warn "Could not resolve a sunshine unit to attach the drop-in to; skipping."
return 0
fi
local dropin_dir="$HOME/.config/systemd/user/${unit}.d"
mkdir -p "$dropin_dir"
install -m 0644 "$dropin_src" "$dropin_dir/headless-prestart.conf"
systemctl --user daemon-reload
ok "Installed headless prestart drop-in at $dropin_dir/headless-prestart.conf"
}