Homebrew Environment Configuration Events (30 days)

/api/analytics/homebrew-env-config/30d.json (JSON API)

Start Date: 2026-08-21

Total Variables: 161

Total Events: 48901447

Each event samples one randomly-chosen configuration variable from a brew run and records whether the user left it unset, set it to its default value or set it to a non-default value. Variables Homebrew exports itself (e.g. HOMEBREW_EDITOR from EDITOR) count as unset. Values are never recorded.

Environment Variable Default Value Set (non-default) Set (default) Unset Events Set (non-default) %
#1 HOMEBREW_NO_AUTO_UPDATE 33,095 0 273,930 307,025 10.78%
#2 HOMEBREW_UPDATE_TO_TAG 9,449 0 296,008 305,457 3.09%
#3 SUDO_ASKPASS 6,899 0 298,615 305,514 2.26%
#4 HOMEBREW_NO_ENV_HINTS 6,486 0 298,236 304,722 2.13%
#5 HOMEBREW_NO_INSTALL_CLEANUP 6,041 0 299,404 305,445 1.98%
#6 HOMEBREW_CACHE macOS: `~/Library/Caches/Homebrew`, Linux: `$XDG_CACHE_HOME/Homebrew` or `~/.cache/Homebrew`. 5,121 21,524 279,424 306,069 1.67%
#7 HOMEBREW_BOTTLE_DOMAIN `https://ghcr.io/v2/homebrew/core`. 4,801 0 299,446 304,247 1.58%
#8 HOMEBREW_GITHUB_API_TOKEN 4,114 0 302,029 306,143 1.34%
#9 HOMEBREW_API_DOMAIN `https://formulae.brew.sh/api`. 3,993 23 300,197 304,213 1.31%
#10 HOMEBREW_CLEANUP_PERIODIC_FULL_DAYS `30`. 3,948 2 301,685 305,635 1.29%
#11 https_proxy 3,737 0 301,169 304,906 1.23%
#12 http_proxy 3,690 0 302,359 306,049 1.21%
#13 HOMEBREW_LOGS macOS: `~/Library/Logs/Homebrew`, Linux: `${XDG_CACHE_HOME}/Homebrew/Logs` or `~/.cache/Homebrew/Logs`. 3,652 20,517 283,165 307,334 1.19%
#14 HOMEBREW_NO_ASK 3,120 0 302,069 305,189 1.02%
#15 no_proxy 3,113 0 303,110 306,223 1.02%
#16 HOMEBREW_PIP_INDEX_URL `https://pypi.org/simple`. 2,940 6 303,154 306,100 0.96%
#17 HOMEBREW_CASK_OPTS 2,664 0 303,333 305,997 0.87%
#18 HOMEBREW_FORBIDDEN_OWNER `you`. 2,085 0 302,575 304,660 0.68%
#19 HOMEBREW_NO_COLOR `$NO_COLOR`. 1,771 0 304,087 305,858 0.58%
#20 HOMEBREW_NO_INSTALL_FROM_API 1,731 0 303,636 305,367 0.57%
#21 HOMEBREW_BREW_GIT_REMOTE `https://github.com/Homebrew/brew`. 1,692 15,727 288,312 305,731 0.55%
#22 all_proxy 1,640 0 304,318 305,958 0.54%
#23 HOMEBREW_TEMP macOS: `/private/tmp`, Linux: `/var/tmp`. 1,408 15,913 289,842 307,163 0.46%
#24 HOMEBREW_INSTALL_BADGE The "Beer Mug" emoji. 1,394 0 304,718 306,112 0.46%
#25 HOMEBREW_SYSTEM_ENV_TAKES_PRIORITY 1,388 0 303,767 305,155 0.45%
#26 HOMEBREW_FORCE_BREW_WRAPPER 1,378 0 304,134 305,512 0.45%
#27 HOMEBREW_GIT_PATH `git`. 1,264 0 303,673 304,937 0.41%
#28 HOMEBREW_FORCE_BREW_WRAPPER_HELP_MESSAGE 1,255 0 304,319 305,574 0.41%
#29 HOMEBREW_CORE_GIT_REMOTE `https://github.com/Homebrew/homebrew-core`. 1,230 15,892 289,629 306,751 0.40%
#30 HOMEBREW_DISABLE_DEBREW 1,201 0 304,936 306,137 0.39%
#31 HOMEBREW_FORBIDDEN_CASKS 1,151 0 303,435 304,586 0.38%
#32 HOMEBREW_DEVELOPER 1,093 0 303,817 304,910 0.36%
#33 HOMEBREW_FORBIDDEN_OWNER_CONTACT 1,055 0 303,738 304,793 0.35%
#34 HOMEBREW_DISPLAY `$DISPLAY`. 1,046 0 304,207 305,253 0.34%
#35 HOMEBREW_NO_REQUIRE_TAP_TRUST 1,042 0 303,480 304,522 0.34%
#36 HOMEBREW_FORBIDDEN_FORMULAE 1,003 0 304,608 305,611 0.33%
#37 HOMEBREW_EDITOR `$EDITOR` or `$VISUAL`. 818 0 303,659 304,477 0.27%
#38 HOMEBREW_FORBIDDEN_TAPS 792 0 305,149 305,941 0.26%
#39 HOMEBREW_LOCK_CONTEXT 735 0 304,551 305,286 0.24%
#40 HOMEBREW_BROWSER `$BROWSER` or the OS's default browser. 732 0 304,652 305,384 0.24%
#41 HOMEBREW_AUTO_UPDATE_SECS `86400` (24 hours), `3600` (1 hour) if a developer command has been run or `300` (5 minutes) if `$HOMEBREW_NO_INSTALL_FROM_API` is set. 645 187 305,181 306,013 0.21%
#42 HOMEBREW_ARTIFACT_DOMAIN 445 0 304,648 305,093 0.15%
#43 HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK 438 9 304,882 305,329 0.14%
#44 HOMEBREW_NO_UPGRADE_AUTO_UPDATES_CASKS 427 0 303,980 304,407 0.14%
#45 HOMEBREW_NO_INSTALL_UPGRADE 393 0 304,698 305,091 0.13%
#46 HOMEBREW_COLOR 372 0 304,218 304,590 0.12%
#47 ftp_proxy 344 0 304,632 304,976 0.11%
#48 HOMEBREW_CURLRC 328 0 305,272 305,600 0.11%
#49 HOMEBREW_VERBOSE_USING_DOTS 325 0 304,737 305,062 0.11%
#50 HOMEBREW_CURL_PATH `curl`. 300 0 304,515 304,815 0.10%
#51 HOMEBREW_DISPLAY_INSTALL_TIMES 295 0 304,874 305,169 0.10%
#52 HOMEBREW_DOCKER_REGISTRY_TOKEN 264 0 304,581 304,845 0.09%
#53 HOMEBREW_ALLOWED_TAPS 262 0 304,300 304,562 0.09%
#54 HOMEBREW_CLEANUP_MAX_AGE_DAYS `120`. 252 0 304,169 304,421 0.08%
#55 HOMEBREW_CURL_RETRIES `3`. 223 143 304,724 305,090 0.07%
#56 HOMEBREW_NO_SANDBOX_LINUX 222 0 305,335 305,557 0.07%
#57 HOMEBREW_NO_INSECURE_REDIRECT 181 0 305,311 305,492 0.06%
#58 HOMEBREW_DOWNLOAD_CONCURRENCY `auto`. 162 1,292 304,154 305,608 0.05%
#59 HOMEBREW_VERIFY_ATTESTATIONS 143 0 305,639 305,782 0.05%
#60 HOMEBREW_GIT_EMAIL 128 0 304,439 304,567 0.04%
#61 HOMEBREW_NO_UPDATE_REPORT_NEW 125 0 305,338 305,463 0.04%
#62 HOMEBREW_SSH_CONFIG_PATH `~/.ssh/config` 122 0 303,944 304,066 0.04%
#63 HOMEBREW_NO_EMOJI 110 0 304,870 304,980 0.04%
#64 HOMEBREW_SORBET_RECURSIVE 103 0 304,775 304,878 0.03%
#65 HOMEBREW_FORCE_BREWED_CURL 100 0 304,610 304,710 0.03%
#66 HOMEBREW_SORBET_RUNTIME 98 0 305,390 305,488 0.03%
#67 HOMEBREW_UPGRADE_GREEDY 96 2 305,392 305,490 0.03%
#68 HOMEBREW_GIT_NAME 93 0 305,036 305,129 0.03%
#69 HOMEBREW_BAT 88 0 304,607 304,695 0.03%
#70 HOMEBREW_ARTIFACT_DOMAIN_NO_FALLBACK 74 0 305,447 305,521 0.02%
#71 HOMEBREW_NO_UPGRADE_QUIT_CASKS 73 0 304,477 304,550 0.02%
#72 HOMEBREW_DOCKER_REGISTRY_BASIC_AUTH_TOKEN 71 0 305,828 305,899 0.02%
#73 HOMEBREW_NO_CLEANUP_FORMULAE 53 0 305,257 305,310 0.02%
#74 HOMEBREW_NO_GITHUB_API 52 0 306,134 306,186 0.02%
#75 HOMEBREW_SIMULATE_MACOS_ON_LINUX 50 0 305,033 305,083 0.02%
#76 HOMEBREW_UPGRADE_GREEDY_CASKS 50 0 305,256 305,306 0.02%
#77 HOMEBREW_FORCE_BREWED_GIT 42 0 304,285 304,327 0.01%
#78 HOMEBREW_GITHUB_PACKAGES_TOKEN 39 0 305,285 305,324 0.01%
#79 HOMEBREW_NO_PATH_SHADOW_CHECK 38 0 305,271 305,309 0.01%
#80 HOMEBREW_USE_INTERNAL_API 36 0 305,015 305,051 0.01%
#81 HOMEBREW_MAKE_JOBS The number of available CPU cores. 34 50 304,344 304,428 0.01%
#82 HOMEBREW_API_AUTO_UPDATE_SECS `450`. 30 1 304,444 304,475 0.01%
#83 HOMEBREW_NO_VERIFY_ATTESTATIONS 28 0 304,923 304,951 0.01%
#84 HOMEBREW_FORCE_API_AUTO_UPDATE 28 0 305,202 305,230 0.01%
#85 HOMEBREW_VERBOSE 26 0 305,071 305,097 0.01%
#86 HOMEBREW_FAIL_LOG_LINES `15`. 26 0 305,681 305,707 0.01%
#87 HOMEBREW_BAT_THEME 25 0 304,421 304,446 0.01%
#88 HOMEBREW_BUNDLE_DUMP_NO_VSCODE 23 0 304,484 304,507 0.01%
#89 HOMEBREW_FORCE_VENDOR_RUBY 23 0 305,623 305,646 0.01%
#90 HOMEBREW_NO_AUTOREMOVE 22 1 306,086 306,109 0.01%
#91 HOMEBREW_AUTO_UPDATE_QUIET 17 0 297,616 297,633 0.01%
#92 HOMEBREW_FORCE_BREWED_CA_CERTIFICATES 16 0 305,269 305,285 0.01%
#93 HOMEBREW_BUNDLE_NO_JOBS 15 0 304,468 304,483 0%
#94 HOMEBREW_BUNDLE_DUMP_NO_GO 13 0 304,305 304,318 0%
#95 HOMEBREW_FORBID_CASKS 13 9 304,992 305,014 0%
#96 HOMEBREW_FORBIDDEN_LICENSES 12 0 303,920 303,932 0%
#97 HOMEBREW_BUNDLE_DUMP_NO_CARGO 9 0 305,337 305,346 0%
#98 HOMEBREW_BUNDLE_FORCE_INSTALL_CLEANUP 8 0 305,168 305,176 0%
#99 HOMEBREW_BUNDLE_INSTALL_CLEANUP 8 0 305,414 305,422 0%
#100 HOMEBREW_BUNDLE_NO_DESCRIBE 8 0 305,721 305,729 0%
#101 HOMEBREW_BUNDLE_JOBS `auto`. 7 1 304,767 304,775 0%
#102 HOMEBREW_BUNDLE_CLEANUP_NO_KREW 7 0 305,189 305,196 0%
#103 HOMEBREW_BUNDLE_DUMP_NO_UV 6 0 305,653 305,659 0%
#104 HOMEBREW_NO_SANDBOX_CASK 6 0 305,691 305,697 0%
#105 HOMEBREW_ARCH `native`. 5 0 304,964 304,969 0%
#106 HOMEBREW_BUNDLE_DUMP_NO_NPM 5 0 305,272 305,277 0%
#107 HOMEBREW_BUNDLE_CLEANUP_NO_CARGO 4 0 304,700 304,704 0%
#108 HOMEBREW_BUNDLE_DUMP_NO_FLATPAK 4 0 305,038 305,042 0%
#109 HOMEBREW_GITHUB_PACKAGES_USER 4 0 305,263 305,267 0%
#110 HOMEBREW_BAT_CONFIG_PATH 3 0 303,292 303,295 0%
#111 HOMEBREW_BUNDLE_CLEANUP_NO_GO 3 0 304,486 304,489 0%
#112 HOMEBREW_NO_BOOTSNAP 3 0 304,916 304,919 0%
#113 HOMEBREW_FORBIDDEN_CASK_ARTIFACTS 3 0 305,249 305,252 0%
#114 HOMEBREW_NO_EVAL_ENV_SCRUBBING 3 0 305,405 305,408 0%
#115 HOMEBREW_FORBID_PACKAGES_FROM_PATHS true unless `$HOMEBREW_DEVELOPER` is set. 3 1,167 304,466 305,636 0%
#116 HOMEBREW_LIVECHECK_AUTOBUMP 3 0 305,711 305,714 0%
#117 HOMEBREW_DEBUG 2 0 304,335 304,337 0%
#118 HOMEBREW_SUDO_THROUGH_SUDO_USER 2 0 304,418 304,420 0%
#119 HOMEBREW_CURL_VERBOSE 2 1 305,027 305,030 0%
#120 HOMEBREW_FORMULA_POSTINSTALL_NETWORK 2 0 305,268 305,270 0%
#121 HOMEBREW_BUNDLE_USER_CACHE 2 0 305,353 305,355 0%
#122 HOMEBREW_BUNDLE_CLEANUP_NO_VSCODE 2 0 305,390 305,392 0%
#123 HOMEBREW_BUNDLE_DUMP_NO_KREW 2 0 305,801 305,803 0%
#124 HOMEBREW_GIT_COMMITTER_NAME 1 0 304,446 304,447 0%
#125 HOMEBREW_BUNDLE_CLEANUP_NO_FLATPAK 1 0 304,662 304,663 0%
#126 HOMEBREW_FORMULA_BUILD_NETWORK 1 0 304,735 304,736 0%
#127 HOMEBREW_EVAL_ALL 1 0 305,082 305,083 0%
#128 HOMEBREW_BUNDLE_DUMP_NO_MAS 1 0 305,271 305,272 0%
#129 HOMEBREW_AVOID_NESTED_SANDBOXING 1 0 305,316 305,317 0%
#130 HOMEBREW_GIT_COMMITTER_EMAIL 1 0 305,684 305,685 0%
#131 HOMEBREW_BUNDLE_CLEANUP_NO_NPM 1 0 305,771 305,772 0%
#132 HOMEBREW_BUNDLE_CLEANUP_NO_UV 0 0 305,263 305,263 0%
#133 HOMEBREW_BUNDLE_DESCRIBE `true`. 0 1 305,844 305,845 0%
#134 HOMEBREW_BUNDLE_DUMP_DESCRIBE 0 0 304,522 304,522 0%
#135 HOMEBREW_UPGRADE_AUTO_UPDATES_CASKS `true`. 0 1 304,743 304,744 0%
#136 HOMEBREW_NO_RELOCATE_BUILD_PREFIX 0 0 73,592 73,592 0%
#137 HOMEBREW_FORMULA_TEST_NETWORK 0 0 305,040 305,040 0%
#138 HOMEBREW_CASK_OPTS_REQUIRE_SHA 0 0 305,158 305,158 0%
#139 HOMEBREW_BUNDLE_DUMP_NO_BREW 0 0 304,719 304,719 0%
#140 HOMEBREW_LIVECHECK_WATCHLIST `${XDG_CONFIG_HOME}/homebrew/livecheck_watchlist.txt` if `$XDG_CONFIG_HOME` is set or `~/.homebrew/livecheck_watchlist.txt` otherwise. 0 0 306,390 306,390 0%
#141 HOMEBREW_BUNDLE_CLEANUP_NO_CASK 0 0 304,293 304,293 0%
#142 HOMEBREW_SKIP_OR_LATER_BOTTLES 0 0 305,241 305,241 0%
#143 HOMEBREW_NO_FORCE_BREW_WRAPPER 0 0 306,379 306,379 0%
#144 HOMEBREW_SBOM `true`. 0 0 304,940 304,940 0%
#145 HOMEBREW_REQUIRE_TAP_TRUST `true`. 0 263 305,095 305,358 0%
#146 HOMEBREW_SANDBOX_LINUX `true`. 0 0 305,646 305,646 0%
#147 HOMEBREW_BUNDLE_CLEANUP_NO_TAP 0 0 305,166 305,166 0%
#148 HOMEBREW_PRY 0 0 306,056 306,056 0%
#149 HOMEBREW_SVN A Homebrew-built Subversion (if installed), or the system-provided binary. 0 0 305,401 305,401 0%
#150 HOMEBREW_BUNDLE_DUMP_NO_WINGET 0 0 305,386 305,386 0%
#151 HOMEBREW_ENV_SYNC_STRICT 0 0 304,606 304,606 0%
#152 HOMEBREW_ASK `true`. 0 14 304,866 304,880 0%
#153 HOMEBREW_DISABLE_LOAD_FORMULA 0 0 304,401 304,401 0%
#154 HOMEBREW_BUNDLE_CLEANUP_NO_BREW 0 0 304,906 304,906 0%
#155 HOMEBREW_BUNDLE_CLEANUP_NO_MAS 0 0 305,273 305,273 0%
#156 HOMEBREW_BUNDLE_CLEANUP_NO_WINGET 0 0 304,668 304,668 0%
#157 HOMEBREW_BUNDLE_DUMP_NO_TAP 0 0 304,867 304,867 0%
#158 HOMEBREW_CASK_OPTS_BINARIES 0 0 305,076 305,076 0%
#159 HOMEBREW_BUNDLE_SECRETS 0 0 305,354 305,354 0%
#160 HOMEBREW_BUNDLE_NO_SECRETS `true`. 0 0 305,170 305,170 0%
#161 HOMEBREW_BUNDLE_DUMP_NO_CASK 0 0 305,512 305,512 0%