A 61-second Short brought 1,400 stars: StykAnimate brings the nostalgia of the Pivot generation to GitHub

A free stick figure animation app, built over half a year. The creator posted an "we're open source now" Short on YouTube that reached 830k views. Over three weeks the repo went from 0 to 1,478 stars and 235 forks. The stars didn't come from GitHub circles. They came from people who played Pivot Animator as kids. Below: what it is, where the stars came from, why it held on, and what to learn from it if you want a project that gets stars too.

The Oct 18 evening video

2026 Oct 18 23:21 (UTC), the YouTube channel @StykAnimate posted a 61-second Short titled "StykAnimate Is Now Open Source". The first line of the description reads: "All the code is on GitHub, under GPL-3.0: read it, fix it, fork it, translate it, build new tools on top of it." The first link is the repo.

As of 11-06, the video has about 830k views, 12.5k likes, and 447 comments (YouTube, 11-06), more than sixty percent of the channel's total views over the past half year (1.29M). The most-liked comments:

"This would vaporize youtube in 2016" (2016 likes). "No way is this pivot animator reborn" (2,909 likes). "I Guess I'll have to build android version myself" (510 likes). "Holy moly I just got flashbacks to Pivot" (366 likes).

Most of these people aren't programmers. They're the generation that grew up in the 2000s and 2010s with Pivot, Stick Page, and "Animator vs Animation." What they saw was: "the software from my childhood is back, and it's free."

What it is

A free, open-source (GPL-3.0) stick figure animation editor: a desktop version for Windows and Linux (Electron), plus a browser version at app.stykanimate.com (WebGPU rendering, works offline). Features include IK for limbs, scalable joints, and 3D parts. It has both Pivot's simple timeline and an advanced timeline with layers and easing. There are motion paths, onion skinning, camera follow, particle effects like explosions, smoke, and beams, a brush tool, and a community asset library. Export to MP4 (with presets for YouTube, Shorts, and TikTok), GIF, and more, in 27 interface languages.

The most important point is in the repo description: it can open project files from Pivot Animator (.piv/.stk) and Stick Nodes directly. Users' work and assets from over a decade can be dragged in and continued.

The author, filippocalippo, has only this one public repo. It's free. The website only links to a Ko-fi donation page.

It had been around all along

The repo was created in September and went public in mid-to-late October, but the product existed back in April:

Numbers come from the YouTube video pages (11-06), Trendshift, and GitHub daily stars. The first 7 days brought +900, the last 7 days brought +170. It's a one-burst-then-trickle curve.

For comparison: in September, the same product on the same channel had its best video at 58.6k views. The product didn't change. What changed was the "open source" hook. For general viewers, "open source" sounds like "free, never going to charge you, nobody can take it away," and that hits harder than any feature list.

Where the stars came from, and where they didn't

The only confirmed source is the author's own YouTube channel. The video went up in the evening 10-18, stars peaked two to four days later, and the first link in the description is the GitHub repo. The Trendshift chart added some extra amplification.

The developer community barely took part. Someone posted the website on Hacker News, got 3 points, and it didn't take off. Almost no discussion on X. No media coverage. It never appeared on GitHub's official Trending. On Reddit, the more prominent threads were skeptical posts in the stick figure community r/PivotAnimator, titled something like "Someone copied a lot from Pivot Animator and made a vibe coding project" (the body wasn't read, and whether the accusation holds up is unverified).

AI-written code became a second wave of discussion. Someone in the comments dug through the repo and wrote: "Claude has twice as many commits as the main developer, and only two contributors: the main developer and Claude." The author didn't dodge it. A week later he published "Did I Vibe Code My Animation App?", admitting heavy use of AI, even with the voiceover cloned from his own voice via ElevenLabs. One of the top-liked comments under that video: "I don't mind AI, as long as you understand what it wrote and can fix its bugs" (207 likes), and another: "We had Stick Nodes on PC before GTA 6" (46 likes).

Why the people who came didn't leave

The stars were pushed up by the video, but forks show whether people who came actually want to use it. 235 forks / 1,478 stars, about 16%, far above a typical tool repo. Real things have already grown from the forks: an unofficial Android port, a lightweight version that swaps Electron for Tauri, and a server that lets AI make animations directly through MCP. In a follow-up video the author said "within a week, 9 strangers had already built things on it." The Discord has 1,406 members (11-06).

The reason it held on is that this space had been empty for a long time:

Store numbers are from Google Play and the App Store (11-06). There's a real gap: no free, modern stick-figure tool on PC or in the browser that still opens old files.

Copycats have already shown up

On 10-23, the fifth day after the spike, blixvip/stick appeared on GitHub: nearly identical copy and features (27 languages, Pivot and Stick Nodes modes), just a different name, and it now has 4 stars. Earlier still, PuppetStudio, a Pivot-style open-source app from late 2025, has 27 stars, but it doesn't read old formats and nobody distributes it.

These two numbers show one thing: the same code on GitHub, without that audience, gets 4 stars.

If it were you

Bottom line: Building another stick-figure app like StykAnimate makes no sense. What's worth copying is its playbook: find a forgotten free old app, rebuild it modern with AI, build an audience on short videos first, then treat "open source" as a launch event.

Who it's for: developers willing to make content long-term, who can keep publishing tutorial shorts on YouTube / TikTok, and who used an old app themselves and know what that generation misses.

Who it's not for: people who want to finish the code, drop it on GitHub, post to HN and wait for stars. This project shows the developer crowd barely helped.

How to do it:

1. Pick a category with generational nostalgia, where the original still exists but is stuck in its old form, where mobile has paid competitors but PC/browser is empty. Flash-era tools, old pixel art / MIDI / map editors, and game mod tools are worth a look (inference, not checked one by one).
2. You must support the old leader's file formats. That makes it a move, not a relearn, and it's the reason old users will comment "it's back."
3. Include a browser version so people can open it instantly and skip the first-step barrier.
4. Keep the code closed or unpublished for now. Spend months posting feature tutorials and updates on short video until you reach a few thousand subscribers. Once the product is complete, launch with a "it's open source now" video and put the GitHub link first in the description.
5. If you use AI to write code, say so. StykAnimate's experience shows that honesty turns the controversy into a second wave of traffic.

How to get users: nostalgic viewers on YouTube Shorts / TikTok aren't GitHub users. Also old-school creator reviews in the community (its May review with 17.5k views came this way), and Discord to hold the people who stay.

When to move early: a category has no window, so whoever starts holds it. But AI lets one person ship a full editor in half a year, which means others can too. If you pick a category, start building the video library as early as you can.

Signs you picked wrong: after two or three months of tutorial shorts, each video stays at a few thousand views and no one in the comments mentions the original app. That means the category's nostalgia isn't big enough, so switch. Or the open-source video gets views, but stars and forks don't follow. That means viewers came to watch, and the product didn't hold them.