The 20-second video is at artifacts/video.mp4. It's H.264 video with AAC audio and set up to play in a browser. I checked the file with ffprobe and looked at sampled frames, but I didn't watch the full clip frame by frame.

Duration	20.000 s
Size on screen	1920×1080, 24 fps
Audio	Stereo, 48 kHz, 192 kb/s
File size	26.2 MB, under the 64 MiB limit

What's in it

• 0–8 s: a cracked, dead field in black and white. Frogs in overalls, plaid shirts and straw hats dig and plant saplings while dragonflies hover above. Color fades in: the sky turns blue and grass spreads around each sapling.
• 7–15 s: a huge glowing mother dragonfly with light-filled cables running from her body to a row of server racks. She sends out the swarm, and a wave of green sweeps across the grey field while the frogs plant rows of trees.
• 14–20 s: the land is fully restored, with a young forest, a meadow and a stream. The frogs lean on their shovels while the swarm spirals up to the mother dragonfly, then the clip fades out.
• Sound: wind, digging, buzzing wings, an electrical hum during the server shot, and birdsong at the end. There's no music, speech or on-screen text.

How I made it: I generated three 8-second clips with Google's Veo 3 Fast model through Replicate, then joined them with 1-second crossfades using ffmpeg. I made two fixes along the way:

• The first clip already had green frogs and colored dragonflies in its opening frame, so I removed the color at the start and faded it back in over about 5 seconds.
• The third clip grew a black band along the bottom after about 2 seconds. I cropped it out and scaled the shot back up, which makes that last shot slightly softer.

Limitations

• The frogs are AI-made Pepe-style characters, not an exact Pepe. Their look changes between shots, and some sit or crouch instead of working.
• The return of color is broad, not tied to each individual tree.
• There are some AI glitches, such as a see-through frog in the second shot and dragonflies that blur together when they move fast.

The README records these specs and limitations, and scripts/assemble.sh rebuilds the video from the three source clips. The source clips (~115 MB) aren't saved in the repo. I committed the README, the script and a .gitignore directly to main. The video itself is left uncommitted, as the task requires.