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<h1>Why You Need <code>sccache</code></h1>
<p>As the maintainer of a <a href="https://writewithharper.com">reasonably popular open source project</a> written in Rust, I find myself cloning PRs and swapping between branches dozens of times a day.
In doing so, I often blow away Rust's compilation cache either via <code>git clean -xf .</code> or by changing dependency versions.</p>
<p>Having a build cache that is separate from the project is a huge win for compile times, which is why I use <a href="https://github.com/mozilla/sccache"><code>sccache</code></a>.</p>
<p>For those unaware, <code>sccache</code> is a build tool for C, C++ and Rust projects that stands in front of the compiler.
If a given file's hash is the same across calls to the compiler, <code>sccache</code> reuses the previous result.
This cache is compiler–and project agnostic.
In my case, it sits in <code>$HOME/.scccache</code>, but you can set it up with AWS S3, Redis or a myriad of other options.</p>
<p>If a dependency is cached from a compile in one project, it is available for a build in another.</p>
<p>In short: you need <code>sccache</code> if you are frequently swapping between branches with similar (but not identical) dependencies or expect to frequently delete Rust's disk cache.</p>
<h2>Why You Don't Need <code>sccache</code></h2>
<p>If you are working in a single branch on a project whose dependencies remain somewhat stable, <code>sccache</code> might actually increase your compile time.
Since <code>sccache</code> has to hit the disk (or even the network) regardless of whether it is a cache hit, a little bit of latency is added.
If you expect most compiles to be cache hits or most compiles to be cache misses, <code>sccache</code> is no more useful than the built-in caching <code>cargo</code> provides.</p>
<p>In that case you should not use <code>sccache</code>.</p>
<h2>Wrap-Up</h2>
<p>Regardless of whether you install <code>sccache</code> on your machine, it is a neat little technology.
I would recommend the curious reader take a look for themselves.
You might be inspired.</p>

Why You Need Sccache

It didn't work for me, and if you reading this, it probably won't work for you either.

<p>It didn't work for me, and if you reading this, it probably won't work for you either.</p>

Do Not Type your Notes

Back in my day, we used math for autocomplete.

<p>Back in my day, we used math for autocomplete.</p>

Markov Chains Are the Original Language Models

<h1>Harper in the News</h1>
<p>The biggest complaint about Harper is that the quality of grammar checking still needs some work.
I've got an exciting new project I'm preparing to discuss later this week (hopefully) in that area.
It should be a step-function improvement over our previous methods for creating new rules.</p>
<p>In the meantime, I've collected some recent sightings of Harper in the wild:</p>
<ul>
<li><a href="https://obsidian.rocks/resource-harper/">Obsidian Rocks</a></li>
<li><a href="https://www.wearefounders.uk/the-grammar-checker-that-actually-gets-developers-meet-harper/">We Are Founders</a></li>
<li><a href="https://itsfoss.com/harper-grammar-checker/">It's FOSS</a></li>
<li><a href="https://www.xda-developers.com/ditched-grammarly-for-this-amazing-open-source-alternative/">XDA Developers</a></li>
</ul>

I've got some exciting new work I'm preparing to discuss later this week (hopefully). In the meantime, I've collected some recent sightings of Harper in the wild.

<p>I've got some exciting new work I'm preparing to discuss later this week (hopefully). In the meantime, I've collected some recent sightings of Harper in the wild.</p>

Elijah Potter

Harper in the News

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Other Stuff

Why You Need Sccache

Do Not Type your Notes

Markov Chains Are the Original Language Models