启动 Homebrew 的并行下载功能
#https://brew.sh/2025/08/05/homebrew-4.6.0/ export HOMEBREW_DOWNLOAD_CONCURRENCY=auto 关闭终端或者 执行 source ~/.zshrc 后续执行 brew install 或者 brew upgrade 会自动启动并行下载，提升加载速度 ➜ brew install octave ==> Auto-updating Homebrew... Adjust how often this is run with `$HOMEBREW_AUTO_UPDATE_SECS` or disable with `$HOMEBREW_NO_AUTO_UPDATE=1`. Hide these hints with `$HOMEBREW_NO_ENV_HINTS=1` (see `man brew`). ==> Auto-updated Homebrew! ==> Updated Homebrew from f037420b415 to 1c625aa2a06. Updated 3 taps (tombener/tap, homebrew/core and homebrew/cask). ==> New Formulae pyrefly: Fast type checker and IDE for Python ==> New Casks boss: AI-powered workspace for complex business operations You have 6 outdated formulae and 2 outdated casks installed. ==> Fetching downloads for: octave ✔︎ Bottle Manifest octave (9.4.0_1) ✔︎ Bottle Manifest eigen (3.4.0_1) ✔︎ Bottle Manifest arpack (3.9.1_1) ✔︎ Bottle arpack (3.9.1_1) ✔︎ Bottle Manifest jbig2dec (0.20) ✔︎ Bottle Manifest libidn (1.43) ✔︎ Bottle libidn (1.43) ✔︎ Bottle Manifest ghostscript (10.05.1) ✔︎ Bottle ghostscript (10.05.1) ✔︎ Bottle Manifest epstool (3.09) ✔︎ Bottle epstool (3.09) ✔︎ Bottle Manifest fig2dev (3.2.9a) ✔︎ Bottle fig2dev (3.2.9a) ✔︎ Bottle Manifest fltk (1.4.4) ✔︎ Bottle Manifest gl2ps (1.4.2) ✔︎ Bottle gl2ps (1.4.2) ✔︎ Bottle Manifest glpk (5.0) ✔︎ Bottle Manifest graphicsmagick (1.3.45_1) ✔︎ Bottle Manifest libheif (1.20.2) ✔︎ Bottle Manifest libaec (1.1.4) ✔︎ Bottle Manifest hdf5 (1.14.6) ✔︎ Bottle Manifest plotutils (2.6_1) ✔︎ Bottle Manifest pstoedit (4.02) ✔︎ Bottle Manifest qhull (2020.2) ✔︎ Bottle Manifest qrupdate (1.1.2_15)