Posts in category 'hacking'

Obviously I do a Google search for my own name from time to time because, admit it, everyone does it. Yeah, you too. Don’t give me that look. We both know it’s true.

So it was that a while back I was perusing those search results, and I came across something that honestly left me incredibly chagrined: a page about something called “Kosinski” compression. Clicking the link, I realized the page was about a project I worked on way back in the early aughts to reverse engineer the algorithm used to compress level data in the Sonic the Hedgehog 2 ROM.

And somewhere along the way, apparently that format got named after me.

Now I want to be extremely clear about something: I did not invent this algorithm or the in-ROM data storage layout, and I certainly didn’t name it after myself. All I did was uncover what was already there and write it down in my own weird way. But, once you put something out in the world, it can take on a life of it’s own, and so now this algorithm has my name on it. Oops!

So naturally I shared this little factoid with some friends, and we all had a laugh. And that was that.

But then, in 2022, a gentleman by the name of Damian Grove reached out. Way back in the day, Damian created a site called the Sonic Hacking Community (SHaC), where he collected a whole raft of information about the Sonic 2 ROM layout in a site he called the Sonic 2 Hacking Guide. In reaching out, Damian was hoping I might answer some questions about the reverse engineering work I did, and so I did what I often do: forgot to reply until months later. Meanwhile, Damian himself didn’t see that reply when it was eventually sent, and so we never connected.

Fast forward, finally, to 2024 and Damian finally spots my email and a) responds with a couple of questions, while also b) including a link to a video from the 2023 Retro World Expo of a panel discussion of the history of Sonic 2 hacking. A video in which I come up as a bit of a topic of conversation.

Now, just to get this out of the way: while I was certainly a bit bemused by the conversation in that video, it was nothing but curious and respectful and I had absolutely no issues being talked about. But I gotta admit, it was more than a little weird to see people speculating about me on stage!

In that conversation I noticed a few misapprehensions about my own background and history and the approach I took to reverse engineer the algorithm, so I figured I’d set the record straight and provide my own vague recollections about how it all went down!

My personal blog, a static site built with Jekyll, is a bit of a frankenstein. I really need to write some posts that get into the dirtier details of how I’ve stitched various bits together (like webmentions, POSSE syndication, and so on). But for this installment I wanted to start with something I’m doing which I think is a bit unique.

So, backing up, as we all know, social media isn’t just about long-form articles on Medium, medium-length rants on Facebook, or short-form trollbait on Twitter. We also track what we read, what we listen to, what we watch, the games we’re playing, the exercise we engage in, the websites we’re bookmarking, and on and on. Basically, if there’s some human activity that we want to collectively experience, there’s probably a social platform somewhere.

I wanted to explore these same ideas, but in the context of my blog. First I started with replacing Goodreads. I’ve since followed that by blogging my cycling PESOS-style with Strava. In both cases I’ve used a combination of purpose built, locally hosted tools for collecting metadata, and then integrating those tools with my blog to enabling publishing the data to the world.

I won’t claim this is a friction-free approach. But it’s working pretty well for me, so I figured it was worth sharing!