Writing by other people that taught me something, translated into Korean so more readers could learn from it. Each one is published with its author’s permission and links back to the original. These are the only Korean pages on the site.
A plain-language tour of the Git words that trip people up, from HEAD and detached HEAD to what “ours” and “theirs” mean during a merge. Pairs well with my Git Tips page.
Why a commit message has a short summary line, a blank line and wrapped text, and how that small habit pays off in every Git tool.
How to ask a technical question so that busy experts want to answer it: do your homework first, pick the right place, and write a precise, courteous question.
How real-time games stay responsive over a slow network: client-side prediction, server reconciliation, entity interpolation and lag compensation, each explained with diagrams.
Building and installing an unpatched upstream kernel on Gentoo, step by step.
Staying in step. Each translation records the version of the original it follows. When an original changes, its card says so until I catch up.
Corrections welcome. If a sentence reads wrong in Korean, write to jeon@ptrtoj.com and I’ll fix it and credit you in the page history.