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Elvish vs NYAGOS: catalog facts
Elvish	NYAGOS
Free Free and open source.	Free Free and open source under the BSD 3-Clause licence.
Windows, macOS, Linux, Command line	Windows, Command line
Readable scripts with lists, maps and functions Catches errors like undefined variables before running	Combines Unix shell habits with Windows command conventions Documentation in English and Japanese
Not POSIX compatible, so Bash scripts do not run unchanged Smaller ecosystem than Bash, Zsh or Fish	Smaller community than PowerShell or bash Some documentation is primarily in Japanese
Downloadable app	Downloadable app
Open source	Open source
License: BSD-2-Clause	License: BSD-3-Clause
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.