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Walkthrough

A 2½-minute screen recording of Thumbforge on a real playlist: install it, fetch the playlist, generate and refine a hero, batch the series with the part badges, run the batch again to see nothing regenerated, check the cost, and export the files.

Download the MP4 (11 MB, 1920×1080, no sound).

Chapters

Times are approximate.

Time What you see
0:00 Title
0:04 Install from PyPI and check the version
0:10 Check the provider
0:17 Set up the database, fetch a playlist, list templates
0:34 Look at a video's existing thumbnail
0:46 Generate a hero (sped up)
0:58 The hero candidates and a grid
1:08 Pick and show
1:16 Before and after
1:20 Refine with thumb iterate (sped up)
1:31 The refined candidates
1:36 Preview a three-part batch with a dry run
1:42 Run the batch (sped up)
1:54 Run it again: nothing is regenerated
2:02 The three parts with their PART badges
2:13 List runs and see the cost
2:23 Export the files
2:27 End card

What to know

  • Every command is a real run, and its output is the real capture.
  • The playlist is a public Hindi audiobook playlist, shown with its owner's permission.
  • The images come from the Antigravity provider (agy 1.2.16) on a Windows machine: 8 provider calls and 9 raw image files in total.
  • Long waits are sped up, and the video labels the factor on screen.
  • Antigravity cannot take a reference image. The thumb iterate and batch steps ran from the prompt alone (the tool warns about it), so the batch art differs in style from the hero.
  • The hero template bold-title shortens a long bilingual title with an ellipsis, while series-parts fits it.
  • The existing YouTube thumbnail is shown at the 336×188 size YouTube served.
  • The grid and the before/after slide are composed from the real exported images.
  • The thumbnails are AI-generated demonstrations.

Follow along