Operating systems, infrastructure, emulation, and technical history.
RetroArch 1.0.0.0 coordinated one frontend across seven targets in 2014, demonstrating libretro's separation of cores from platform services.
Nintendo Switch Online launched in 2018 with 20 licensed NES games, suspend points, online play, and a subscription-dependent access model.
Nintendo's 2024 case against Yuzu ended in a $2.4 million judgment and permanent injunction, without a contested trial on broader emulation law.
How rollback netcode predicts remote inputs, restores deterministic state, re-simulates missed frames, detects desyncs, and balances delay with artifacts.
How cartridge dumpers read ROM, mapper banks, save memory, and metadata—and how repeated reads, hashes, provenance, and safe handling establish confidence.
How emulators serialize CPU, memory, devices, clocks, and pending events—and why completeness, determinism, versioning, and validation matter.
After accidentally catting a binary file, the terminal shows strange characters or wrong colors — the shell is fine, the terminal's display state is what broke.
Commands seem to vanish between sessions, or history from multiple terminals overwrites instead of combining — how history writing works and the fix for each.
Opening a new terminal tab shouldn't take a visibly annoying second or two — how to find which specific config line is responsible, rather than guessing.
Wrong or missing colors specifically inside Windows Terminal connected to WSL, even though the same shell config looks fine over plain SSH.