All paths into sky-cam.conf; install.sh generates systemd units

sky-cam.conf
- Add SCRIPT_DIR (install location) and CAM_NAME (camera/folder name)
- These are the only values that change when deploying to a new machine

install.sh (new)
- Sources sky-cam.conf, generates all systemd .service and .timer units
  with correct ExecStart paths, then enables and starts the timers
- Run once after editing sky-cam.conf; run again if paths change
- Supports --system flag for system-wide install

All .sh scripts + sunrise2mm.py
- No hardcoded paths remain
- script_name=$(basename ...) derivation replaced by $CAM_NAME from conf
- sunrise_video.10s.sh now sources sky-cam.conf for BASE_DIR, CAM_NAME,
  and SCRIPT_DIR (replaces all /home/motion/... references)
- sunrise2mm.py builds video path from BASE_DIR + CAM_NAME in conf

systemd/ template files kept as reference but no longer need editing

https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ

4-seasons.sh

@@ -43,8 +43,7 @@ target_per_clip=$(echo "scale=6; $music_duration / $DAYS_IN_MVT" | bc)
 echo "Target clip duration: $target_per_clip s  ($DAYS_IN_MVT days in movement)"
 
 # ── Locate yesterday's images ─────────────────────────────────────────────────
-script_name=$(basename "$SCRIPT_DIR" | cut -d'-' -f1)
-image_dir="$base_dir/$script_name/$yesterday"
+image_dir="$base_dir/$CAM_NAME/$yesterday"
 
 if [ ! -d "$image_dir" ]; then
     echo "WARNING: Image directory $image_dir not found — skipping $yesterday."
@@ -59,7 +58,7 @@ fi
 echo "Images found: $total_images"
 
 # ── Prepare output directory ──────────────────────────────────────────────────
-output_dir="$base_dir/movies/$script_name/$ASTRO_YEAR/$SEASON/Mvt$MVT_NUM"
+output_dir="$base_dir/movies/$CAM_NAME/$ASTRO_YEAR/$SEASON/Mvt$MVT_NUM"
 mkdir -p "$output_dir"
 
 # ── Build sorted image list ───────────────────────────────────────────────────