Hot loading WASM
Wasm, or WebAssembly, is a very fast stack machine that happens to be buried in your browser. You can compile all kinds of low level code to wasm and have it execute at break-neck speed. But we like Clojure and clojurians love hot loading their code for maximal development cycles. Here is how I set up a hot loading wasm environment using clang, shadow-cljs and babashka. I also managed to preserve the WebAssembly heap between loads to really enhance that Clojure experience.
Combining doseq and loadLibrary Considered Harmful
"load/recur" is not a solution. It just fails far less often. Extensive testing shows it failing about 4% of the time (as opposed to 50% of the time with doseq). The problem is not related to doseq... but lies deeper. It is possibly a timing issue. Another blog post will be forthcoming when the root cause is found.
Faster GraalVM Clojure Compilation Times
Are you building a clojure project and compiling it to a native binary with GraalVM? As the project has grown, has the GraalVM compilation time gotten longer and longer? Here is the story of how I discovered @borkdude's trick to getting GraalVM native image times in under 5 minutes.
Generating XML With Bootleg
The latest release of bootleg (0.1.7) contains some new XML output functionality. I added this to bootleg to facilitate the generation of an RSS news feed form the epiccastle blog page that you are reading right now. Here is how I generate this RSS.
Tiny Enlive Transformer Implements update-in
I have some markdown in a project on github. And it contains relative links. These relative link take you to other markdown files in the github repo. When you click the links on github the browser navigates to
doc/tutorial.md and shows it in the github styling. All good.
Setting Up Acmetool With Route53 Hooks
Let's Encrypt is a non-profit certificate authority that can issue you SSL certificates for free. These certificates can be used to secure any type of TLS connection. Most commonly they are used to secure HTTPS web sites, but they can also be used to secure email, usenet news, file servers, chat servers or any other type of internet connection.