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@chrissimpkins
chrissimpkins / gist:5bf5686bae86b8129bee
Last active December 21, 2025 20:02
Atom Editor Cheat Sheet: macOS

Use these rapid keyboard shortcuts to control the GitHub Atom text editor on macOS.

Key to the Keys

  • ⌘ : Command key
  • ⌃ : Control key
  • ⌫ : Delete key
  • ← : Left arrow key
  • → : Right arrow key
  • ↑ : Up arrow key
@Chaser324
Chaser324 / GitHub-Forking.md
Last active December 2, 2025 20:05
GitHub Standard Fork & Pull Request Workflow

Whether you're trying to give back to the open source community or collaborating on your own projects, knowing how to properly fork and generate pull requests is essential. Unfortunately, it's quite easy to make mistakes or not know what you should do when you're initially learning the process. I know that I certainly had considerable initial trouble with it, and I found a lot of the information on GitHub and around the internet to be rather piecemeal and incomplete - part of the process described here, another there, common hangups in a different place, and so on.

In an attempt to coallate this information for myself and others, this short tutorial is what I've found to be fairly standard procedure for creating a fork, doing your work, issuing a pull request, and merging that pull request back into the original project.

Creating a Fork

Just head over to the GitHub page and click the "Fork" button. It's just that simple. Once you've done that, you can use your favorite git client to clone your repo or j

@jboner
jboner / latency.txt
Last active December 30, 2025 18:49
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD