GoKawiil
Tech News
A developer released Rhun, an open-source code editor built in assembly language, featuring tabs, syntax highlighting, fuzzy search and an optional Vim mode. It integrates running builds, shell commands and AI coding agents like Claude Code and Codex, supports diff review and committing, and offers 39 light and dark themes.
Computer scientist David Chisnall reported that installing Neovim caused it to detect existing Vim persistent-undo files, delete their contents, and replace them with a new incompatible format, without renaming or upgrading the originals. He said Vim itself could no longer read the resulting files either. When he raised an issue about the data loss, he was told the persistent undo file format is considered unstable and not guaranteed to preserve data.
The developer of the bine hex editor explored adding colorized output similar to Vim's xxd, but found that per-character coloring was too costly under the ncurses-based movwin TUI framework. Instead, bine now uses special block characters (▓ for NUL bytes, ░ for non-printable bytes) in the ASCII column to visually distinguish text from binary data without expensive per-cell rendering calls.