WAPM is a package manager for WebAssembly created by the folks at WASMER. Think of it as npm but for webassembly. In this video we explore the various features of WAPM and how you can use WASM modules on the online playground and how to install wasm modules locally using WAPM. In addition we get underneath and look at how WAPM packages up the modules and show how it can be used by both wasmer and wasmtime runtimes. In addition, we create and publish our own WAPM package with our own WebAssembly (WASM) module using assemblyscript. We create a simple hello-world program that outputs hello world to the console using WASI (WebAssembly System Interface) and as-wasi. WASI allows you to access console, environment and filesystem from webassembly using extensions. Finally we package our application and publish it to the wapm.io registry. 00:00 - introduction to WAPM 01:50 - exploring wapm.io 02:30 - installing and running cowsay in the wapm playground 04:54 - installing and running sqlite in the wapm playground 07:54 - installing wapm locally 08:35 - checking wapm is installed okay 09:20 - installing wapm packages on my local machine 10:47 - running cowsay wasm locally 12:04 - running wapm packages directly with wasmer 13:35 - installing and running sqlite locally with wapm 14:52 - using wasmtime with wapm packages 17:40 - creating our own wasm package with assemblyscript 21:30 - using wasi and as-wasi to interact with the console 25:00 - signing up for an account with wapm.io 26:10 - creating a wapm.toml file 31:38 - creating a readme for wapm 33:04 - logging into wapm using access tokens 34:50 - publishing our wapm package 36:34 - updating our package and version 38:04 - using our new published package 38:55 - conclusion git repo is here https://github.com/chrishayuk/hello-wasi-assemblyscript