Ppt90s video

90s PowerPoint Video Generator

Turn photos into a video that looks like a home-made 90s PowerPoint deck. The generator script ppt90s.py is bundled in the same directory as this SKILL.md — resolve its path from this skill's location (e.g. .claude/skills/ppt90s-video/ppt90s.py).

Requirements: Python 3 with Pillow + numpy, ffmpeg on PATH, and the classic fonts (Impact / Arial Black / Comic Sans MS / Times New Roman — preinstalled on macOS). yt-dlp is needed only for song-by-URL.

Step 1 — Interview the user

Ask for ALL of the following in ONE message (don't drip questions one at a time). If the user already provided some values in their request, don't re-ask those. AskUserQuestion caps at 4 options per question, so present the music menu as a numbered list in plain chat text.

1. Photo source (required): a folder path or a public Google Photos shared-album link.
2. Music — present exactly these 7 options with their descriptions:
   1. casio-demo — square-wave arpeggios, the demo button on a Casio keyboard (default)
   2. party-time — 128 BPM four-on-the-floor dance beat with chord stabs
   3. hava-nagila — the Hava Nagila melody over an oom-pah bass, bar-mitzvah dance floor
   4. wedding-waltz — gentle 3/4 waltz, soft chords and a dreamy arpeggio
   5. chiptune-hero — fast 8-bit pulse-wave arps, NES title screen
   6. smooth-elevator — lazy maj7 pads and a pentatonic noodle, hotel lobby 1996
   7. space-mystery — detuned minor pads and an echoing vibrato lead, unsolved mysteries (Also mention they can say "no music", OR give a real song as a YouTube link / audio file path — used via --music-file, requires yt-dlp for links: brew install yt-dlp.)
3. Number of images to include (sampled evenly across the source).
4. Video length in seconds.
5. Title for the title slide.
6. Event (optional): e.g. "Bar Mitzvah", "Wedding", "Birthday" — shown as "* A Very Special {Event} *" on the title slide.

Defaults if the user shrugs or skips an answer: music casio-demo, 12 images, 45 seconds, title from the folder/album name, no event.

Step 2 — Generate

python3 <path-to-this-skill>/ppt90s.py "<SOURCE>" \
  --limit <N_IMAGES> \
  --length <SECONDS> \
  --title "<TITLE>" \
  --music-style <STYLE> \
  [--event "<EVENT>"] \
  -o "<slugified-title>.mp4"

• For "no music" pass --no-music instead of --music-style.
• For a real song pass --music-file "<youtube-url-or-audio-path>" instead of --music-style (it loops/trims to the video length and fades out).
• Google Photos links only work if publicly viewable without sign-in; if the script exits with "Could not find any images", tell the user to check the link is a public shared album.
• Rendering draws every frame with PIL; ~1 minute per 10 slides is normal. Use a generous Bash timeout (600000 ms).

Step 3 — Verify and deliver

1. Check the run printed Done! -> <output> and verify with ffprobe -v error -show_entries format=duration -of csv=p=0 <output> that the duration is close to the requested length.
2. Extract one mid-video frame (ffmpeg -i out.mp4 -vf "select='eq(n\,150)'" -vsync 0 check.png) and Read it to confirm slides rendered (WordArt title
   • photo visible).
3. Send the video to the user (SendUserFile if available), mentioning slide count, duration, and the chosen music style.