Overview
Coxygen YouTube is a free video archive of recorded programming sessions, filmed live and posted unedited. It follows a South African training group teaching students to write Cardano smart contracts (small programs that run on a blockchain) across more than a hundred recorded meetings. The videos keep the mistakes and the debugging in, rather than showing only the finished answer.
The channel belongs to Coxygen Global, a company registered in Johannesburg that paid for its training and live-support work with Project Catalyst grants, the pool of Cardano community funding that members vote to allocate. Recorded sessions were written into the grant terms as the deliverable itself, which is why so much unpolished material ended up in public1. What the channel offers is a back catalogue rather than a stream of new uploads: over a hundred recordings, a set of playlists, and a complete eighteen-lesson Haskell course.
Key Features
- Sessions filmed as they happened. Most videos run thirty minutes to an hour with no editing, no chapters and no script, so a viewer sees how a problem gets diagnosed rather than a rehearsed walkthrough.
- A beginner Haskell course in eighteen parts. The lessons build from data types and pattern matching up to type classes, modules, monoids and functors, the language groundwork that Cardano's original contract tooling assumes.
- Coverage of the Cardano contract toolkits. Sessions work through Helios, Aiken and Marlowe, which are languages for writing a contract, and Lucid and Mesh, the libraries that build the transactions putting it on the network2.
- The team's own JavaScript library, demonstrated in use. Coxylib wraps the Helios toolkit so a developer can assemble a Cardano app from plain HTML files, including token minting under the CIP-68 metadata standard, with no package manager or build step to install first3.
- A matching written curriculum. The same Haskell and Plutus material exists as a chapter-by-chapter online book covering the ledger interfaces a contract talks to, plus two fully worked contracts4.
What to Expect
Production values are low. There is no banner, no channel description and no custom thumbnails, and most video titles are a date, a session number and a first name, so scrolling the video list tells a newcomer almost nothing. The playlists are the only real navigation, and most of them group sessions by the month they were recorded; the others collect the Haskell course, the WIMS-Cardano sessions and the Developer Advocate strands5.
The practical way in is to pick a topic rather than browse. The Haskell course is self-contained and sits closest to a structured class, while the session on writing Plutus Core correctly is a fair sample of the live-support format.
The channel is a record of how one Cardano development cohort actually learned, not a polished course. Set against other Cardano development channels, what Coxygen offers is not production quality but volume: hours of unglamorous problem-solving, with the student code and class attendance records from the same programme published openly on GitHub6.
