Homebrew Environment Configuration Events (30 days)

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

Start Date: 2026-08-01

Total Variables: 161

Total Events: 92454839

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 47,678 0 532,561 580,239 8.22%
#2 HOMEBREW_UPDATE_TO_TAG 25,233 0 554,582 579,815 4.35%
#3 SUDO_ASKPASS 15,570 0 563,918 579,488 2.69%
#4 HOMEBREW_NO_ENV_HINTS 12,049 0 567,866 579,915 2.08%
#5 HOMEBREW_NO_INSTALL_CLEANUP 9,768 0 569,911 579,679 1.69%
#6 HOMEBREW_GITHUB_API_TOKEN 9,362 0 570,183 579,545 1.62%
#7 HOMEBREW_BOTTLE_DOMAIN `https://ghcr.io/v2/homebrew/core`. 8,950 0 569,980 578,930 1.55%
#8 HOMEBREW_API_DOMAIN `https://formulae.brew.sh/api`. 7,497 34 572,364 579,895 1.29%
#9 HOMEBREW_CLEANUP_PERIODIC_FULL_DAYS `30`. 7,389 5 572,232 579,626 1.27%
#10 https_proxy 6,905 0 571,281 578,186 1.19%
#11 http_proxy 6,770 0 572,058 578,828 1.17%
#12 no_proxy 5,774 0 572,975 578,749 1%
#13 HOMEBREW_NO_ASK 5,722 0 574,328 580,050 0.99%
#14 HOMEBREW_PIP_INDEX_URL `https://pypi.org/simple`. 5,317 2 574,107 579,426 0.92%
#15 HOMEBREW_CASK_OPTS 4,824 0 574,288 579,112 0.83%
#16 HOMEBREW_CACHE macOS: `~/Library/Caches/Homebrew`, Linux: `$XDG_CACHE_HOME/Homebrew` or `~/.cache/Homebrew`. 4,796 55,347 522,599 582,742 0.82%
#17 HOMEBREW_NO_INSTALL_FROM_API 4,696 0 573,630 578,326 0.81%
#18 HOMEBREW_NO_COLOR `$NO_COLOR`. 4,632 0 573,754 578,386 0.80%
#19 HOMEBREW_BREW_GIT_REMOTE `https://github.com/Homebrew/brew`. 3,344 44,417 533,232 580,993 0.58%
#20 HOMEBREW_FORBIDDEN_OWNER `you`. 3,324 0 575,206 578,530 0.57%
#21 all_proxy 3,115 0 575,929 579,044 0.54%
#22 HOMEBREW_DEVELOPER 2,926 0 575,355 578,281 0.51%
#23 HOMEBREW_DISPLAY `$DISPLAY`. 2,799 0 575,956 578,755 0.48%
#24 HOMEBREW_EDITOR `$EDITOR` or `$VISUAL`. 2,640 0 575,975 578,615 0.46%
#25 HOMEBREW_LOGS macOS: `~/Library/Logs/Homebrew`, Linux: `${XDG_CACHE_HOME}/Homebrew/Logs` or `~/.cache/Homebrew/Logs`. 2,605 53,926 526,244 582,775 0.45%
#26 HOMEBREW_TEMP macOS: `/private/tmp`, Linux: `/var/tmp`. 2,382 44,992 534,518 581,892 0.41%
#27 HOMEBREW_CORE_GIT_REMOTE `https://github.com/Homebrew/homebrew-core`. 2,338 44,667 535,399 582,404 0.40%
#28 HOMEBREW_SYSTEM_ENV_TAKES_PRIORITY 2,316 0 577,960 580,276 0.40%
#29 HOMEBREW_INSTALL_BADGE The "Beer Mug" emoji. 2,275 2 577,457 579,734 0.39%
#30 HOMEBREW_GIT_PATH `git`. 2,263 0 577,021 579,284 0.39%
#31 HOMEBREW_FORCE_BREW_WRAPPER 2,253 0 575,879 578,132 0.39%
#32 HOMEBREW_FORCE_BREW_WRAPPER_HELP_MESSAGE 2,196 0 577,062 579,258 0.38%
#33 HOMEBREW_DISABLE_DEBREW 2,022 0 577,680 579,702 0.35%
#34 HOMEBREW_NO_REQUIRE_TAP_TRUST 1,863 0 575,993 577,856 0.32%
#35 HOMEBREW_FORBIDDEN_CASKS 1,687 0 576,760 578,447 0.29%
#36 HOMEBREW_BROWSER `$BROWSER` or the OS's default browser. 1,414 0 577,013 578,427 0.24%
#37 HOMEBREW_FORBIDDEN_OWNER_CONTACT 1,394 0 577,750 579,144 0.24%
#38 HOMEBREW_AUTO_UPDATE_SECS `86400` (24 hours), `3600` (1 hour) if a developer command has been run or `300` (5 minutes) if `$HOMEBREW_NO_INSTALL_FROM_API` is set. 1,389 386 576,115 577,890 0.24%
#39 HOMEBREW_FORBIDDEN_FORMULAE 1,361 0 576,580 577,941 0.24%
#40 HOMEBREW_LOCK_CONTEXT 1,191 0 578,671 579,862 0.21%
#41 HOMEBREW_COLOR 1,095 0 578,344 579,439 0.19%
#42 HOMEBREW_FORBIDDEN_TAPS 1,000 0 578,652 579,652 0.17%
#43 HOMEBREW_ARTIFACT_DOMAIN 898 0 577,359 578,257 0.16%
#44 HOMEBREW_NO_UPGRADE_AUTO_UPDATES_CASKS 760 0 577,612 578,372 0.13%
#45 HOMEBREW_CURL_PATH `curl`. 722 0 578,231 578,953 0.12%
#46 ftp_proxy 668 0 577,858 578,526 0.12%
#47 HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK 649 8 578,864 579,521 0.11%
#48 HOMEBREW_VERBOSE_USING_DOTS 610 0 577,640 578,250 0.11%
#49 HOMEBREW_CURLRC 565 0 579,481 580,046 0.10%
#50 HOMEBREW_DISPLAY_INSTALL_TIMES 543 0 577,764 578,307 0.09%
#51 HOMEBREW_DOCKER_REGISTRY_TOKEN 476 0 578,559 579,035 0.08%
#52 HOMEBREW_NO_SANDBOX_LINUX 472 0 579,114 579,586 0.08%
#53 HOMEBREW_CURL_RETRIES `3`. 454 405 577,581 578,440 0.08%
#54 HOMEBREW_CLEANUP_MAX_AGE_DAYS `120`. 433 0 577,961 578,394 0.07%
#55 HOMEBREW_ALLOWED_TAPS 432 0 578,839 579,271 0.07%
#56 HOMEBREW_NO_INSTALL_UPGRADE 368 3 578,615 578,986 0.06%
#57 HOMEBREW_NO_INSECURE_REDIRECT 343 0 578,985 579,328 0.06%
#58 HOMEBREW_SORBET_RUNTIME 321 0 579,058 579,379 0.06%
#59 HOMEBREW_DOWNLOAD_CONCURRENCY `auto`. 308 3,822 575,397 579,527 0.05%
#60 HOMEBREW_NO_UPDATE_REPORT_NEW 286 0 579,059 579,345 0.05%
#61 HOMEBREW_VERIFY_ATTESTATIONS 276 0 577,479 577,755 0.05%
#62 HOMEBREW_SORBET_RECURSIVE 245 0 577,429 577,674 0.04%
#63 HOMEBREW_NO_EMOJI 232 0 579,211 579,443 0.04%
#64 HOMEBREW_FORCE_BREWED_CURL 206 0 578,194 578,400 0.04%
#65 HOMEBREW_GIT_EMAIL 204 0 578,057 578,261 0.04%
#66 HOMEBREW_GIT_NAME 202 0 579,435 579,637 0.03%
#67 HOMEBREW_UPGRADE_GREEDY 196 5 577,725 577,926 0.03%
#68 HOMEBREW_SSH_CONFIG_PATH `~/.ssh/config` 196 1 578,498 578,695 0.03%
#69 HOMEBREW_BAT 176 0 577,661 577,837 0.03%
#70 HOMEBREW_NO_GITHUB_API 157 0 579,792 579,949 0.03%
#71 HOMEBREW_NO_UPGRADE_QUIT_CASKS 147 0 578,992 579,139 0.03%
#72 HOMEBREW_ARTIFACT_DOMAIN_NO_FALLBACK 139 0 578,392 578,531 0.02%
#73 HOMEBREW_DOCKER_REGISTRY_BASIC_AUTH_TOKEN 139 0 578,746 578,885 0.02%
#74 HOMEBREW_BAT_THEME `$BAT_THEME`. 119 0 579,336 579,455 0.02%
#75 HOMEBREW_NO_CLEANUP_FORMULAE 111 0 579,188 579,299 0.02%
#76 HOMEBREW_API_AUTO_UPDATE_SECS `450`. 103 1 579,109 579,213 0.02%
#77 HOMEBREW_SIMULATE_MACOS_ON_LINUX 99 0 578,706 578,805 0.02%
#78 HOMEBREW_USE_INTERNAL_API 92 0 578,027 578,119 0.02%
#79 HOMEBREW_UPGRADE_GREEDY_CASKS 91 0 578,726 578,817 0.02%
#80 HOMEBREW_MAKE_JOBS The number of available CPU cores. 82 65 577,098 577,245 0.01%
#81 HOMEBREW_FORCE_BREWED_GIT 81 0 578,413 578,494 0.01%
#82 HOMEBREW_GITHUB_PACKAGES_TOKEN 76 0 578,251 578,327 0.01%
#83 HOMEBREW_NO_VERIFY_ATTESTATIONS 75 0 577,889 577,964 0.01%
#84 HOMEBREW_FAIL_LOG_LINES `15`. 68 0 579,318 579,386 0.01%
#85 HOMEBREW_NO_PATH_SHADOW_CHECK 55 1 578,769 578,825 0.01%
#86 HOMEBREW_BUNDLE_NO_JOBS 53 0 579,255 579,308 0.01%
#87 HOMEBREW_NO_AUTOREMOVE 51 0 580,705 580,756 0.01%
#88 HOMEBREW_VERBOSE 48 0 578,668 578,716 0.01%
#89 HOMEBREW_FORCE_VENDOR_RUBY 41 0 578,409 578,450 0.01%
#90 HOMEBREW_FORCE_BREWED_CA_CERTIFICATES 40 0 578,643 578,683 0.01%
#91 HOMEBREW_BUNDLE_DUMP_NO_VSCODE 36 0 577,369 577,405 0.01%
#92 HOMEBREW_FORBID_CASKS 32 16 578,099 578,147 0.01%
#93 HOMEBREW_FORBIDDEN_LICENSES 27 0 577,398 577,425 0%
#94 HOMEBREW_BUNDLE_DUMP_NO_GO 22 0 579,119 579,141 0%
#95 HOMEBREW_BUNDLE_JOBS `auto`. 22 0 579,284 579,306 0%
#96 HOMEBREW_BUNDLE_NO_DESCRIBE 21 0 579,057 579,078 0%
#97 HOMEBREW_BUNDLE_FORCE_INSTALL_CLEANUP 18 0 578,936 578,954 0%
#98 HOMEBREW_FORCE_API_AUTO_UPDATE 16 0 578,782 578,798 0%
#99 HOMEBREW_BAT_CONFIG_PATH `$BAT_CONFIG_PATH`. 14 0 576,779 576,793 0%
#100 HOMEBREW_BUNDLE_INSTALL_CLEANUP 13 0 578,142 578,155 0%
#101 HOMEBREW_BUNDLE_DUMP_NO_CARGO 12 0 578,006 578,018 0%
#102 HOMEBREW_FORBID_PACKAGES_FROM_PATHS true unless `$HOMEBREW_DEVELOPER` is set. 12 2,065 577,863 579,940 0%
#103 HOMEBREW_AUTO_UPDATE_QUIET 8 0 392,210 392,218 0%
#104 HOMEBREW_BUNDLE_USER_CACHE 11 0 578,103 578,114 0%
#105 HOMEBREW_BUNDLE_DUMP_NO_NPM 10 0 578,867 578,877 0%
#106 HOMEBREW_EVAL_ALL 9 0 578,506 578,515 0%
#107 HOMEBREW_ARCH `native`. 8 0 578,629 578,637 0%
#108 HOMEBREW_FORBIDDEN_CASK_ARTIFACTS 8 0 579,840 579,848 0%
#109 HOMEBREW_NO_BOOTSNAP 7 0 578,760 578,767 0%
#110 HOMEBREW_BUNDLE_DUMP_NO_KREW 7 0 579,639 579,646 0%
#111 HOMEBREW_LIVECHECK_AUTOBUMP 7 0 580,157 580,164 0%
#112 HOMEBREW_DEBUG 6 0 578,781 578,787 0%
#113 HOMEBREW_GITHUB_PACKAGES_USER 6 0 579,681 579,687 0%
#114 HOMEBREW_NO_SANDBOX_CASK 6 0 580,137 580,143 0%
#115 HOMEBREW_FORMULA_BUILD_NETWORK 5 0 578,169 578,174 0%
#116 HOMEBREW_CURL_VERBOSE 5 1 578,266 578,272 0%
#117 HOMEBREW_BUNDLE_DUMP_NO_FLATPAK 5 0 578,963 578,968 0%
#118 HOMEBREW_BUNDLE_DUMP_NO_UV 4 0 579,732 579,736 0%
#119 HOMEBREW_FORMULA_POSTINSTALL_NETWORK 3 0 579,028 579,031 0%
#120 HOMEBREW_BUNDLE_DUMP_NO_MAS 3 0 579,183 579,186 0%
#121 HOMEBREW_BUNDLE_DUMP_DESCRIBE 2 0 577,777 577,779 0%
#122 HOMEBREW_BUNDLE_CLEANUP_NO_MAS 2 0 578,199 578,201 0%
#123 HOMEBREW_GIT_COMMITTER_NAME 2 0 578,254 578,256 0%
#124 HOMEBREW_AVOID_NESTED_SANDBOXING 2 0 578,616 578,618 0%
#125 HOMEBREW_NO_EVAL_ENV_SCRUBBING 2 0 579,490 579,492 0%
#126 HOMEBREW_PRY 2 0 579,678 579,680 0%
#127 HOMEBREW_SVN A Homebrew-built Subversion (if installed), or the system-provided binary. 1 0 578,058 578,059 0%
#128 HOMEBREW_SUDO_THROUGH_SUDO_USER 1 0 578,763 578,764 0%
#129 HOMEBREW_BUNDLE_DUMP_NO_WINGET 1 0 578,920 578,921 0%
#130 HOMEBREW_GIT_COMMITTER_EMAIL 1 0 579,351 579,352 0%
#131 HOMEBREW_BUNDLE_DESCRIBE `true`. 0 2 580,076 580,078 0%
#132 HOMEBREW_FORMULA_TEST_NETWORK 0 0 578,588 578,588 0%
#133 HOMEBREW_BUNDLE_CLEANUP_NO_CASK 0 0 577,660 577,660 0%
#134 HOMEBREW_SBOM `true`. 0 1 579,058 579,059 0%
#135 HOMEBREW_BUNDLE_CLEANUP_NO_TAP 0 0 579,087 579,087 0%
#136 HOMEBREW_BUNDLE_CLEANUP_NO_NPM 0 0 579,346 579,346 0%
#137 HOMEBREW_ENV_SYNC_STRICT 0 0 578,146 578,146 0%
#138 HOMEBREW_CASK_OPTS_REQUIRE_SHA 0 0 579,929 579,929 0%
#139 HOMEBREW_REQUIRE_TAP_TRUST `true`. 0 586 577,548 578,134 0%
#140 HOMEBREW_BUNDLE_CLEANUP_NO_BREW 0 0 578,450 578,450 0%
#141 HOMEBREW_ASK `true`. 0 14 579,083 579,097 0%
#142 HOMEBREW_BUNDLE_CLEANUP_NO_WINGET 0 0 579,456 579,456 0%
#143 HOMEBREW_BUNDLE_DUMP_NO_TAP 0 0 578,566 578,566 0%
#144 HOMEBREW_DISABLE_LOAD_FORMULA 0 0 578,393 578,393 0%
#145 HOMEBREW_BUNDLE_CLEANUP_NO_KREW 0 0 580,031 580,031 0%
#146 HOMEBREW_BUNDLE_DUMP_NO_CASK 0 0 578,819 578,819 0%
#147 HOMEBREW_NO_FORCE_BREW_WRAPPER 0 0 579,192 579,192 0%
#148 HOMEBREW_UPGRADE_AUTO_UPDATES_CASKS `true`. 0 2 578,258 578,260 0%
#149 HOMEBREW_NO_RELOCATE_BUILD_PREFIX 0 0 548 548 0%
#150 HOMEBREW_BUNDLE_CLEANUP_NO_CARGO 0 0 579,986 579,986 0%
#151 HOMEBREW_BUNDLE_SECRETS 0 0 578,771 578,771 0%
#152 HOMEBREW_BUNDLE_NO_SECRETS `true`. 0 1 577,896 577,897 0%
#153 HOMEBREW_BUNDLE_DUMP_NO_BREW 0 0 579,156 579,156 0%
#154 HOMEBREW_SKIP_OR_LATER_BOTTLES 0 0 577,961 577,961 0%
#155 HOMEBREW_SANDBOX_LINUX `true`. 0 0 580,347 580,347 0%
#156 HOMEBREW_BUNDLE_CLEANUP_NO_UV 0 0 578,611 578,611 0%
#157 HOMEBREW_LIVECHECK_WATCHLIST `${XDG_CONFIG_HOME}/homebrew/livecheck_watchlist.txt` if `$XDG_CONFIG_HOME` is set or `~/.homebrew/livecheck_watchlist.txt` otherwise. 0 0 579,834 579,834 0%
#158 HOMEBREW_CASK_OPTS_BINARIES 0 0 578,698 578,698 0%
#159 HOMEBREW_BUNDLE_CLEANUP_NO_FLATPAK 0 0 578,717 578,717 0%
#160 HOMEBREW_BUNDLE_CLEANUP_NO_GO 0 0 578,508 578,508 0%
#161 HOMEBREW_BUNDLE_CLEANUP_NO_VSCODE 0 0 579,675 579,675 0%