Kling 4.0
AI video generator for text-to-video and image-to-video
What is Kling 4.0?
Kling 4.0 is a browser-based AI video generator. Write a prompt or upload an image and it produces short, cinematic clips with natural motion, useful for social posts, ads and concept previews. With text-to-video, you describe a scene in plain words and get a short clip. With image-to-video, you upload a still image and it is animated with natural motion. Everything runs in the browser, so there is nothing to install.
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FounderPlaybooks.
What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
The launch tweet on X.com did something around 30k views which is 15 times the impressions but only 20% of the revenue came from that.
Use Low-View YouTube Videos as Your Most Powerful Launch Channel
When Jackie launched Local Rank, a video with only 1,800 views on YouTube drove 80% of the $20K MRR launch, while a tweet with 30K impressions drove only 20%. A small but highly engaged YouTube audience dramatically outperforms a large but passive social following when converting launch traffic to paying customers. The insight reframes launch success from impressions to audience trust.
Pink Bike partners with the trail associations for mountain bikers, and those trail associations now act almost as the marketing partner of Pink Bike to let consumers know that all the trail detail is on the PinkBike app.
Partnership distribution: PinkBike's trail associations became a zero-CAC acquisition engine
When paid acquisition becomes unreliable, the apps that win embed themselves in their community's existing infrastructure. PinkBike (TrailForks) distributed through trail associations — the very organisations their target users already trust — with zero ad spend. Eric cites Strava and Pray.com/NFL as parallel examples. These partnerships are earned, not bought, and compound brand value in a way a Facebook campaign never can.
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