I launched an open source CLI tool with zero audience — here's what happened in 10 days

10 days ago I posted about a tool I built on LinkedIn. I had no prior posts and no history of sharing my work online. I just wanted to see if anyone cared. The tool is fast-copy — a Python CLI for high-speed file transfers with block-order I/O, content-aware deduplication, and SSH tar streaming. I wrote about the technical details in my previous article . This post is about what happened after I hit publish. The numbers After 10 days, with no ads, no influencers, and no growth hacks: 557 total clones from 202 unique users on GitHub 100 unique visitors on the repo 14 people read the full source code 175 readers on my dev.to article Organic traffic from Google, DuckDuckGo, Bing, Kagi, Reddit, and Hacker News People I've never met shared it in Slack channels and Teams groups at their workplaces All from one LinkedIn post, one dev.to article, and one Hacker News submission. What actually worked LinkedIn surprised me I expected zero engagement. Instead, the post reached 676 people and got a