Homebrew Environment Configuration Events (30 days)

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

Start Date: 2026-09-10

Total Variables: 162

Total Events: 63789750

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 50,003 0 346,847 396,850 12.60%
#2 HOMEBREW_NO_ENV_HINTS 9,179 0 386,420 395,599 2.32%
#3 HOMEBREW_NO_INSTALL_CLEANUP 7,329 0 387,127 394,456 1.86%
#4 HOMEBREW_UPDATE_TO_TAG 6,935 0 388,458 395,393 1.75%
#5 HOMEBREW_CACHE macOS: `~/Library/Caches/Homebrew`, Linux: `$XDG_CACHE_HOME/Homebrew` or `~/.cache/Homebrew`. 5,936 17,263 372,386 395,585 1.50%
#6 SUDO_ASKPASS 5,702 0 389,110 394,812 1.44%
#7 HOMEBREW_NO_REQUIRE_TAP_TRUST 5,511 0 388,847 394,358 1.40%
#8 HOMEBREW_GITHUB_API_TOKEN 5,215 0 389,593 394,808 1.32%
#9 HOMEBREW_NO_ASK 4,647 0 389,309 393,956 1.18%
#10 HOMEBREW_LOGS macOS: `~/Library/Logs/Homebrew`, Linux: `${XDG_CACHE_HOME}/Homebrew/Logs` or `~/.cache/Homebrew/Logs`. 4,491 16,686 374,547 395,724 1.13%
#11 HOMEBREW_BOTTLE_DOMAIN `https://ghcr.io/v2/homebrew/core`. 4,096 0 389,851 393,947 1.04%
#12 HOMEBREW_CLEANUP_PERIODIC_FULL_DAYS `30`. 3,908 1 391,080 394,989 0.99%
#13 https_proxy 3,822 0 391,317 395,139 0.97%
#14 http_proxy 3,795 0 391,513 395,308 0.96%
#15 HOMEBREW_FORBIDDEN_OWNER `you`. 3,708 0 391,810 395,518 0.94%
#16 HOMEBREW_API_DOMAIN `https://formulae.brew.sh/api`. 3,689 35 391,158 394,882 0.93%
#17 no_proxy 3,682 0 390,757 394,439 0.93%
#18 HOMEBREW_FORBIDDEN_CASKS 3,473 0 391,922 395,395 0.88%
#19 HOMEBREW_NO_INSTALL_FROM_API 3,460 0 390,570 394,030 0.88%
#20 HOMEBREW_FORBIDDEN_OWNER_CONTACT 3,349 0 391,806 395,155 0.85%
#21 HOMEBREW_FORBIDDEN_FORMULAE 3,310 0 391,710 395,020 0.84%
#22 HOMEBREW_FORBIDDEN_TAPS 3,184 0 390,910 394,094 0.81%
#23 HOMEBREW_CASK_OPTS 2,778 0 392,241 395,019 0.70%
#24 HOMEBREW_PIP_INDEX_URL `https://pypi.org/simple`. 2,591 0 391,970 394,561 0.66%
#25 all_proxy 1,713 0 392,898 394,611 0.43%
#26 HOMEBREW_NO_COLOR `$NO_COLOR`. 1,570 0 394,158 395,728 0.40%
#27 HOMEBREW_BREW_GIT_REMOTE `https://github.com/Homebrew/brew`. 1,517 11,615 381,496 394,628 0.38%
#28 HOMEBREW_SIMULATE_MACOS_ON_LINUX 1,342 0 394,004 395,346 0.34%
#29 HOMEBREW_DEVELOPER 1,288 0 393,505 394,793 0.33%
#30 HOMEBREW_CORE_GIT_REMOTE `https://github.com/Homebrew/homebrew-core`. 1,210 11,110 383,431 395,751 0.31%
#31 HOMEBREW_COLOR 920 0 393,676 394,596 0.23%
#32 HOMEBREW_NO_INSTALL_UPGRADE 866 0 393,779 394,645 0.22%
#33 HOMEBREW_BROWSER `$BROWSER` or the OS's default browser. 862 0 394,407 395,269 0.22%
#34 HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK 839 8 393,432 394,279 0.21%
#35 HOMEBREW_TEMP macOS: `/private/tmp`, Linux: `/var/tmp`. 795 10,972 384,368 396,135 0.20%
#36 HOMEBREW_INSTALL_BADGE The "Beer Mug" emoji. 714 0 392,955 393,669 0.18%
#37 HOMEBREW_SYSTEM_ENV_TAKES_PRIORITY 685 0 394,739 395,424 0.17%
#38 HOMEBREW_AUTO_UPDATE_SECS `86400` (24 hours), `3600` (1 hour) if a developer command has been run or `300` (5 minutes) if `$HOMEBREW_NO_INSTALL_FROM_API` is set. 682 232 393,897 394,811 0.17%
#39 HOMEBREW_GIT_PATH `git`. 680 0 394,128 394,808 0.17%
#40 HOMEBREW_FORCE_BREW_WRAPPER 679 0 393,884 394,563 0.17%
#41 HOMEBREW_DISPLAY `$DISPLAY`. 664 0 394,155 394,819 0.17%
#42 HOMEBREW_FORCE_BREW_WRAPPER_HELP_MESSAGE 614 0 394,780 395,394 0.16%
#43 HOMEBREW_ARTIFACT_DOMAIN 585 0 394,702 395,287 0.15%
#44 HOMEBREW_NO_UPGRADE_AUTO_UPDATES_CASKS 584 0 395,299 395,883 0.15%
#45 HOMEBREW_DISABLE_DEBREW 551 0 394,184 394,735 0.14%
#46 HOMEBREW_EDITOR `$EDITOR` or `$VISUAL`. 526 0 393,849 394,375 0.13%
#47 HOMEBREW_NO_SANDBOX_LINUX 429 0 395,511 395,940 0.11%
#48 HOMEBREW_LOCK_CONTEXT 377 0 393,700 394,077 0.10%
#49 ftp_proxy 377 0 394,314 394,691 0.10%
#50 HOMEBREW_DISPLAY_INSTALL_TIMES 328 0 394,778 395,106 0.08%
#51 HOMEBREW_CURLRC 324 0 394,478 394,802 0.08%
#52 HOMEBREW_VERBOSE_USING_DOTS 291 0 394,864 395,155 0.07%
#53 HOMEBREW_DOCKER_REGISTRY_TOKEN 283 0 394,513 394,796 0.07%
#54 HOMEBREW_NO_SUDO 160 0 246,677 246,837 0.06%
#55 HOMEBREW_CLEANUP_MAX_AGE_DAYS `120`. 254 0 395,417 395,671 0.06%
#56 HOMEBREW_NO_UPGRADE_QUIT_CASKS 239 2 394,028 394,269 0.06%
#57 HOMEBREW_ALLOWED_TAPS 234 0 394,724 394,958 0.06%
#58 HOMEBREW_NO_GITHUB_API 232 0 394,244 394,476 0.06%
#59 HOMEBREW_NO_INSECURE_REDIRECT 230 0 395,014 395,244 0.06%
#60 HOMEBREW_DOCKER_REGISTRY_BASIC_AUTH_TOKEN 226 0 394,279 394,505 0.06%
#61 HOMEBREW_NO_UPDATE_REPORT_NEW 219 0 395,330 395,549 0.06%
#62 HOMEBREW_CURL_PATH `curl`. 181 0 394,860 395,041 0.05%
#63 HOMEBREW_NO_AUTOREMOVE 180 0 394,854 395,034 0.05%
#64 HOMEBREW_UPGRADE_GREEDY 164 6 395,854 396,024 0.04%
#65 HOMEBREW_DOWNLOAD_CONCURRENCY `auto`. 159 482 392,734 393,375 0.04%
#66 HOMEBREW_SSH_CONFIG_PATH `~/.ssh/config` 145 2 394,514 394,661 0.04%
#67 HOMEBREW_FORCE_BREWED_CURL 145 0 394,784 394,929 0.04%
#68 HOMEBREW_CURL_RETRIES `3`. 143 219 393,577 393,939 0.04%
#69 HOMEBREW_ARTIFACT_DOMAIN_NO_FALLBACK 133 0 395,395 395,528 0.03%
#70 HOMEBREW_FORCE_API_AUTO_UPDATE 130 0 393,759 393,889 0.03%
#71 HOMEBREW_VERIFY_ATTESTATIONS 129 0 395,267 395,396 0.03%
#72 HOMEBREW_NO_EMOJI 126 0 394,145 394,271 0.03%
#73 HOMEBREW_SORBET_RECURSIVE 126 0 394,772 394,898 0.03%
#74 HOMEBREW_BAT 109 0 394,044 394,153 0.03%
#75 HOMEBREW_FORCE_BREWED_CA_CERTIFICATES 107 0 394,229 394,336 0.03%
#76 HOMEBREW_API_AUTO_UPDATE_SECS `450`. 98 0 395,202 395,300 0.02%
#77 HOMEBREW_SORBET_RUNTIME 80 0 395,818 395,898 0.02%
#78 HOMEBREW_UPGRADE_GREEDY_CASKS 69 0 394,302 394,371 0.02%
#79 HOMEBREW_GIT_NAME 57 0 392,765 392,822 0.01%
#80 HOMEBREW_FAIL_LOG_LINES `15`. 54 0 393,620 393,674 0.01%
#81 HOMEBREW_FORCE_VENDOR_RUBY 51 0 394,474 394,525 0.01%
#82 HOMEBREW_NO_CLEANUP_FORMULAE 50 0 395,188 395,238 0.01%
#83 HOMEBREW_MAKE_JOBS The number of available CPU cores. 50 39 396,112 396,201 0.01%
#84 HOMEBREW_GITHUB_PACKAGES_TOKEN 47 0 395,322 395,369 0.01%
#85 HOMEBREW_GIT_EMAIL 44 0 396,685 396,729 0.01%
#86 HOMEBREW_NO_PATH_SHADOW_CHECK 42 0 394,451 394,493 0.01%
#87 HOMEBREW_BUNDLE_DUMP_NO_VSCODE 41 0 394,960 395,001 0.01%
#88 HOMEBREW_AUTO_UPDATE_QUIET 40 0 391,336 391,376 0.01%
#89 HOMEBREW_NO_VERIFY_ATTESTATIONS 36 0 394,941 394,977 0.01%
#90 HOMEBREW_FORBIDDEN_LICENSES 35 0 394,169 394,204 0.01%
#91 HOMEBREW_BUNDLE_DUMP_NO_CARGO 33 0 395,485 395,518 0.01%
#92 HOMEBREW_BUNDLE_DUMP_NO_GO 32 0 394,531 394,563 0.01%
#93 HOMEBREW_BUNDLE_DUMP_NO_NPM 32 0 395,308 395,340 0.01%
#94 HOMEBREW_VERBOSE 31 0 394,720 394,751 0.01%
#95 HOMEBREW_BUNDLE_DUMP_NO_FLATPAK 31 0 395,528 395,559 0.01%
#96 HOMEBREW_FORCE_BREWED_GIT 30 0 395,195 395,225 0.01%
#97 HOMEBREW_FORBID_PACKAGES_FROM_PATHS true unless `$HOMEBREW_DEVELOPER` is set. 29 602 395,605 396,236 0.01%
#98 HOMEBREW_BUNDLE_DUMP_NO_KREW 27 0 393,834 393,861 0.01%
#99 HOMEBREW_BUNDLE_DUMP_NO_UV 25 0 395,277 395,302 0.01%
#100 HOMEBREW_BUNDLE_CLEANUP_NO_NPM 24 0 394,870 394,894 0.01%
#101 HOMEBREW_BUNDLE_CLEANUP_NO_GO 21 0 394,877 394,898 0.01%
#102 HOMEBREW_BUNDLE_CLEANUP_NO_FLATPAK 21 0 395,075 395,096 0.01%
#103 HOMEBREW_BUNDLE_CLEANUP_NO_CARGO 20 0 394,485 394,505 0.01%
#104 HOMEBREW_BUNDLE_NO_DESCRIBE 16 0 394,729 394,745 0%
#105 HOMEBREW_FORBID_CASKS 16 3 394,842 394,861 0%
#106 HOMEBREW_BUNDLE_CLEANUP_NO_KREW 14 0 394,938 394,952 0%
#107 HOMEBREW_BUNDLE_CLEANUP_NO_VSCODE 11 0 393,712 393,723 0%
#108 HOMEBREW_BUNDLE_CLEANUP_NO_UV 11 0 393,777 393,788 0%
#109 HOMEBREW_BAT_THEME 10 0 394,562 394,572 0%
#110 HOMEBREW_FORMULA_POSTINSTALL_NETWORK 8 0 393,883 393,891 0%
#111 HOMEBREW_BUNDLE_NO_JOBS 7 0 394,548 394,555 0%
#112 HOMEBREW_ARCH `native`. 7 2 394,766 394,775 0%
#113 HOMEBREW_FORMULA_BUILD_NETWORK 7 0 395,106 395,113 0%
#114 HOMEBREW_LIVECHECK_AUTOBUMP 5 0 393,903 393,908 0%
#115 HOMEBREW_FORBIDDEN_CASK_ARTIFACTS 5 0 394,915 394,920 0%
#116 HOMEBREW_DEBUG 5 0 394,932 394,937 0%
#117 HOMEBREW_GITHUB_PACKAGES_USER 4 0 394,678 394,682 0%
#118 HOMEBREW_NO_EVAL_ENV_SCRUBBING 4 0 395,132 395,136 0%
#119 HOMEBREW_SUDO_THROUGH_SUDO_USER 3 0 393,778 393,781 0%
#120 HOMEBREW_GIT_COMMITTER_EMAIL 3 0 394,061 394,064 0%
#121 HOMEBREW_BUNDLE_USER_CACHE 3 0 394,321 394,324 0%
#122 HOMEBREW_NO_BOOTSNAP 3 0 394,429 394,432 0%
#123 HOMEBREW_BUNDLE_DUMP_NO_MAS 3 0 394,444 394,447 0%
#124 HOMEBREW_BUNDLE_FORCE_INSTALL_CLEANUP 2 0 394,639 394,641 0%
#125 HOMEBREW_BUNDLE_JOBS `auto`. 2 0 394,715 394,717 0%
#126 HOMEBREW_BUNDLE_DUMP_NO_WINGET 2 0 394,865 394,867 0%
#127 HOMEBREW_CURL_VERBOSE 1 1 393,720 393,722 0%
#128 HOMEBREW_AVOID_NESTED_SANDBOXING 1 0 393,839 393,840 0%
#129 HOMEBREW_BUNDLE_DUMP_DESCRIBE 1 0 394,441 394,442 0%
#130 HOMEBREW_EVAL_ALL 1 0 394,570 394,571 0%
#131 HOMEBREW_BUNDLE_INSTALL_CLEANUP 1 0 394,735 394,736 0%
#132 HOMEBREW_CASK_OPTS_REQUIRE_SHA 1 0 395,300 395,301 0%
#133 HOMEBREW_BUNDLE_CLEANUP_NO_MAS 1 0 395,460 395,461 0%
#134 HOMEBREW_GIT_COMMITTER_NAME 1 0 395,554 395,555 0%
#135 HOMEBREW_NO_RELOCATE_BUILD_PREFIX 0 0 378,675 378,675 0%
#136 HOMEBREW_BUNDLE_CLEANUP_NO_WINGET 0 0 395,161 395,161 0%
#137 HOMEBREW_SVN A Homebrew-built Subversion (if installed), or the system-provided binary. 0 0 394,113 394,113 0%
#138 HOMEBREW_BUNDLE_CLEANUP_NO_BREW 0 0 395,482 395,482 0%
#139 HOMEBREW_BAT_CONFIG_PATH 0 0 394,756 394,756 0%
#140 HOMEBREW_ASK `true`. 0 17 395,130 395,147 0%
#141 HOMEBREW_NO_FORCE_BREW_WRAPPER 0 0 395,327 395,327 0%
#142 HOMEBREW_BUNDLE_DUMP_NO_TAP 0 0 394,445 394,445 0%
#143 HOMEBREW_NO_SANDBOX_CASK 0 0 394,362 394,362 0%
#144 HOMEBREW_BUNDLE_CLEANUP_NO_TAP 0 0 394,589 394,589 0%
#145 HOMEBREW_BUNDLE_CLEANUP_NO_CASK 0 0 394,467 394,467 0%
#146 HOMEBREW_CASK_OPTS_BINARIES 0 0 392,549 392,549 0%
#147 HOMEBREW_SBOM `true`. 0 0 394,821 394,821 0%
#148 HOMEBREW_ENV_SYNC_STRICT 0 0 392,925 392,925 0%
#149 HOMEBREW_LIVECHECK_WATCHLIST `${XDG_CONFIG_HOME}/homebrew/livecheck_watchlist.txt` if `$XDG_CONFIG_HOME` is set or `~/.homebrew/livecheck_watchlist.txt` otherwise. 0 0 395,671 395,671 0%
#150 HOMEBREW_BUNDLE_DESCRIBE `true`. 0 0 393,949 393,949 0%
#151 HOMEBREW_PRY 0 0 394,575 394,575 0%
#152 HOMEBREW_SANDBOX_LINUX `true`. 0 0 394,900 394,900 0%
#153 HOMEBREW_SKIP_OR_LATER_BOTTLES 0 0 395,699 395,699 0%
#154 HOMEBREW_DISABLE_LOAD_FORMULA 0 0 394,206 394,206 0%
#155 HOMEBREW_BUNDLE_NO_SECRETS `true`. 0 0 394,637 394,637 0%
#156 HOMEBREW_BUNDLE_DUMP_NO_BREW 0 0 394,768 394,768 0%
#157 HOMEBREW_REQUIRE_TAP_TRUST `true`. 0 377 393,508 393,885 0%
#158 HOMEBREW_USE_INTERNAL_API 0 0 394,993 394,993 0%
#159 HOMEBREW_UPGRADE_AUTO_UPDATES_CASKS `true`. 0 0 394,774 394,774 0%
#160 HOMEBREW_BUNDLE_DUMP_NO_CASK 0 0 394,751 394,751 0%
#161 HOMEBREW_BUNDLE_SECRETS 0 0 394,000 394,000 0%
#162 HOMEBREW_FORMULA_TEST_NETWORK 0 0 394,602 394,602 0%