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A drawing-based maze game
July 9, 2019 (updated July 18, 2019) by Noah

I've been working on a videogame the past couple of years, off and on. It's called...

...for now. I have a better name picked out for it, but I'm going to be callling it Project: Doodle (while it's in alpha) so that the finished version will be distinct from the alpha versions, of which it may end up looking nothing like!

The theme of Doodle is centered around hand-drawn, side-scrolling platformer type mazes. You can draw your own levels using freehand and basic drawing tools, color in some fire or water, and drag in pre-made "Doodads" like buttons, keys and doors to add some interaction to your level.

Read more for a screenshot, more information and alpha version download links (Linux, Windows and Mac OS).

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Poor Man's ngrok
May 4, 2017 by Noah

Recently, I was developing a Python/Flask app to implement Web Hooks for a third-party API that I was working with. The API recommended the use of ngrok during local development so that the server running on your local computer could be accessed publicly over the Internet (so that their API could reach yours).

ngrok is cool and all, but for their free plan they randomize the subdomain they give you every time you start the program. This meant I always had to log into my API account and change my Web Hook URL each day.

What ngrok is doing is nothing new: I've written about using SSH to forward ports between machines, and figured it should be easy enough for me to configure a subdomain on my own server that forwards traffic to another port that I could open when I need to.

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Music Management
July 29, 2016 by Noah

Manually managing a music collection of MP3 files on disk is such a pain in the ass that I felt like blogging about it.

First, you have cloud music services like Google Play Music which can't detect duplicates properly.

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A review of Linux desktop environments
June 17, 2016 by Noah

The next version of Fedora (24) is coming out soon, so I decided a couple weeks ago that I'd take a tour of all the different desktop environments and see if I like any of them enough to switch from Xfce. My original desktop environment of choice was GNOME 2, and I had jumped ship to Xfce after GNOME 3 was released because I was no fan of the tablet-focused, feature-stripped interface of the new desktop and GNOME 2.32 was, in my opinion, the pinnacle of the desktop metaphor for Linux.

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Principle of Least Astonishment
March 22, 2016 by Noah

In user interface and software design, the principle of least astonishment states that "if a necessary feature has a high astonishment factor, it may be necessary to redesign the feature." It means that your user interface should behave in a way that the user expects, based on their prior knowledge of how similar interfaces behave.

This is a rant about Mac OS X.

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Let's Encrypt
December 30, 2015 by Noah

The free SSL certificate authority Let's Encrypt went into public beta earlier this month, and I updated all of my sites to use SSL now. I still had several more months before kirsle.net's old certificate from Namecheap expired, but I switched to the Let's Encrypt certificate because I could include all my subdomains instead of only the www one.

Check out their website and get free SSL certificates for your sites, too. I'm just writing this blog with some personal tips for how I configured my nginx server and a Python script I wrote to automate the process of renewing my certificates every month (Let's Encrypt certs expire every 90 days).

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Internet Protocol version 6
July 20, 2015 by Noah

Last weekend I was pleasantly surprised to discover that Time Warner Cable already supports IPv6 at my apartment.

They shipped me a newer cable modem/WiFi router combo device earlier this year as part of their plan to upgrade everyone's Internet speeds in Los Angeles. I didn't realize that this modem also supported IPv6, and it wasn't enabled by default.

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Fedora 21 on the 2015 Macbook Air
May 2, 2015 by Noah

Today I picked up a Macbook Air (13", early 2015 model) because I wanted a new laptop, as my old laptop (the Samsung Series 5) has a horrible battery life, where it barely lasts over an hour and gives up early (powering down at 40% and not coming back up until I plug it in). This is also my first Apple computer. I'm the furthest thing from an Apple fanboy, but the choices I was throwing around in my head were between an Apple computer and a Lenovo Thinkpad.

I was given a Thinkpad as my work laptop, and it's by far the most impressive PC laptop I've ever used; it can drive three displays and run lots of concurrent tasks and has an insane battery life. Every PC laptop I've owned in the past have sucked in comparison. I hear people compare Apple computers to Thinkpads, so that's why the choice came down to one of these, and I didn't want another Thinkpad sitting around the house. ;)

Months before getting a Macbook I was looking into what kind of effort it takes to install Linux on a Macbook. There's a lot of information out there, and most of it suggests that the best way to go is to install a boot manager like rEFIt (or rEFInd, since rEFIt isn't maintained anymore). I saw some pages about not using rEFIt and installing Grub directly, which were from a Debian and Arch Linux perspective, and it sounded really complicated.

It seems that nowadays, with a user friendly Linux distribution like Fedora, a lot of this works much more flawlessly than the dozens of tutorials online would suggest. I just made a Fedora LiveUSB in the usual way (as if installing on a normal PC), rebooted the Macbook while holding the Option key, so that I was able to select the USB to boot from.

When installing Fedora to disk, the process was very much the same as doing it on a normal PC. I let Fedora automatically create the partition layout, and it created partitions and mount points for /, /boot and /home like usual, but it also created a partition and mount point for /boot/efi (for installing itself as the default bootloader in the EFI firmware on the Macbook). After installation was completed, I rebooted and the grub boot screen comes up immediately, with options to boot into Fedora.

One weird thing is, the grub screen apparently sees something related to Mac OS X (there were two entries, like "Mac OS X 32-bit" and "Mac OS X 64-bit", but both options would give error messages when picked).

If I want to boot into OS X, I hold down the Option key on boot and pick the Macintosh HD from the EFI boot menu. Otherwise, if the Macbook boots normally it goes into the grub menu and then Fedora. So, the whole thing is very similar to a typical PC dual-boot setup (with Windows and Linux), just with one extra step to get into OS X.

Update: I'm keeping a wiki page with miscellaneous setup notes and tips here: Fedora on Macbook

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Linux Desktop Remote Code Execution via File URI
March 27, 2015 by Noah
I've discovered a sort of "remote code execution" vulnerability that affects all Linux desktops, particularly Fedora and Ubuntu but most likely all desktop Linux distributions could be affected, except for maybe Arch or Gentoo with extremely customized installations.

First and foremost: this requires the victim to click not one, but two random links sent to them over Pidgin (or any other program that does URL auto-linking the way Pidgin does). So it's not exactly the most severe vulnerability, but I found it interesting nonetheless.

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Brief GNOME 3.14 Review
December 18, 2014 by Noah

I jumped ship from GNOME 2 to XFCE when GNOME 3 was announced and have ranted about it endlessly, but then I decided to give GNOME 3.14 (Fedora 21) a try.

I still installed Fedora XFCE on all the PCs I care about, and decided my personal laptop was the perfect guinea pig for GNOME because I never do anything with that laptop and wouldn't mind re-formatting it again for XFCE if I turn out not to like Gnome.

After scouring the GNOME Shell extensions I installed a handful that made my desktop somewhat tolerable:

Screenshot (Click for bigger screenshot)

And then I found way too many little papercuts, some worse than others. My brief list:

Settings weren't always respected very well, and some apps would need to be "coerced" into actually looking at their settings. For example, I configured the GNOME Terminal to use a transparent background. It worked when I first set it up, but then it would rarely work after that. If I opened a new terminal, the background would be solid black. Adjusting the transparency setting now had no effect. Sometimes, opening and closing a tab would get GNOME Terminal to actually read its settings and turn transparent. Most of the time though, it didn't, and nothing I could do would get the transparency to come back on. It all depended on the alignment of the stars and when GNOME Terminal damn well feels like it.

Also, I use a left handed mouse, and GNOME Shell completely got confused after a reboot. The task bar and window buttons (maximize, close, etc.) and other Shell components would be right handed, while the actual apps I use would be left handed. So, clicking the scrollbar and links in Firefox would be left-handed (right mouse button is your "left click"), and when I wanted to close out of Firefox, I'd instead get a context menu popup when clicking the "X" button. Ugh!

I wanted to write this blog post from within GNOME but it just wasn't possible. With different parts of my GUI using right-handed buttons and other parts using left-handed ones, I had context menus popping up when I didn't want them and none popping up when I did. After a while I thought to go into the Mouse settings and switch it back; this didn't help, instead, the parts that used to be right-handed switched to left-handed, and vice versa. It was impossible to use. I just had to painstakingly get a screenshot off the laptop and to my desktop and deal with it over there instead.

These things just lead me to believe the GNOME developers only develop for their particular workflows and don't bother testing any features that other mere mortals might like to use. All the GNOME developers are probably right-handed, and they have no idea about the left-handed bugs. All of the GNOME developers don't use transparency in their terminals, evidenced by the fact that the transparency option disappeared from GNOME 3.0 and only just recently has made a comeback (in GNOME 3.12/Fedora 20).

XFCE is going back on this laptop.

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