Add environment variables documentation

src/content/docs/reference/environment-variables.mdx

@@ -2,15 +2,89 @@
 title: Environment Variables
 sidebar:
   order: 1
-  badge:
-    text: WIP
-    variant: caution
 ---
 
-import Stub from '@components/Stub.astro';
+This is a documentation of all environment variables used by tauri core crates and tauri CLI.
 
-<Stub>
+## Tauri CLI
 
-Integrate https://github.com/tauri-apps/tauri/blob/dev/tooling/cli/ENVIRONMENT_VARIABLES.md into this page.
+These environment variables are inputs to the CLI which may have an equivalent CLI flag.
 
-</Stub>
+:::tip[Environment Variable Priority]
+
+If both environment variable and CLI flag are used, the CLI flag will have priority.
+
+:::
+
+### CI
+If set, the CLI will run in CI mode and won't require any user interaction.
+### TAURI_CLI_CONFIG_DEPTH
+Number of levels to traverse and find tauri configuration file.
+### TAURI_CLI_PORT
+Port to use for the CLI built-in dev server.
+### TAURI_CLI_WATCHER_IGNORE_FILENAME
+Name of a `.gitignore`-style file to control which files should be watched by the CLI in `dev` command. The CLI will look for this file name in each directory.
+### TAURI_CLI_NO_DEV_SERVER_WAIT
+Skip waiting for the frontend dev server to start before building the tauri application.
+### TAURI_LINUX_AYATANA_APPINDICATOR
+Set this var to `true` or `1` to force usage of `libayatana-appindicator` for system tray on Linux.
+### TAURI_BUNDLER_WIX_FIPS_COMPLIANT
+Specify the bundler's WiX `FipsCompliant` option.
+### TAURI_SKIP_SIDECAR_SIGNATURE_CHECK
+Skip signing sidecars.
+### TAURI_SIGNING_PRIVATE_KEY
+Private key used to sign your app bundles, can be either a string or a path to the file.
+### TAURI_SIGNING_PRIVATE_KEY_PASSWORD
+The signing private key password, see `TAURI_SIGNING_PRIVATE_KEY`.
+### TAURI_SIGNING_RPM_KEY
+The private GPG key used to sign the RPM bundle, exported to its ASCII-armored format.
+### TAURI_SIGNING_RPM_KEY_PASSPHRASE
+The GPG key passphrase for `TAURI_SIGNING_RPM_KEY`, if needed.
+### APPLE_CERTIFICATE
+Base64 encoded of the `.p12` certificate for code signing. To get this value, run `openssl base64 -in MyCertificate.p12 -out MyCertificate-base64.txt`.
+### APPLE_CERTIFICATE_PASSWORD
+The password you used to export the certificate.
+### APPLE_ID
+The Apple ID used to notarize the application. If this environment variable is provided, `APPLE_PASSWORD` and `APPLE_TEAM_ID` must also be set. Alternatively, `APPLE_API_KEY` and `APPLE_API_ISSUER` can be used to authenticate.
+### APPLE_PASSWORD
+The Apple password used to authenticate for application notarization. Required if `APPLE_ID` is specified. An app-specific password can be used. Alternatively to entering the password in plaintext, it may also be specified using a '@keychain:' or '@env:' prefix followed by a keychain password item name or environment variable name.
+### APPLE_TEAM_ID
+Developer team ID. To find your Team ID, go to the [Account](https://developer.apple.com/account) page on the Apple Developer website, and check your membership details.
+### APPLE_API_KEY
+Alternative to `APPLE_ID` and `APPLE_PASSWORD` for notarization authentication using JWT.  
+See [creating API keys](https://developer.apple.com/documentation/appstoreconnectapi/creating_api_keys_for_app_store_connect_api) for more information.
+### API_PRIVATE_KEYS_DIR
+Specify the directory where your AuthKey file is located. See `APPLE_API_KEY`.
+### APPLE_API_ISSUER
+Issuer ID. Required if `APPLE_API_KEY` is specified.
+### APPLE_API_KEY_PATH
+Path to the API key `.p8` file. If not specified, the bundler searches the following directories in sequence for a private key file with the name of 'AuthKey\_\<api_key>.p8': './private_keys', '\~/private_keys', '\~/.private_keys', and '\~/.appstoreconnect/private_keys'.
+### APPLE_SIGNING_IDENTITY
+The identity used to code sign. Overwrites `tauri.conf.json > bundle > macOS > signingIdentity`.
+### APPLE_PROVIDER_SHORT_NAME
+If your Apple ID is connected to multiple teams, you have to specify the provider short name of the team you want to use to notarize your app. Overwrites `tauri.conf.json > bundle > macOS > providerShortName`.
+### APPLE_DEVELOPMENT_TEAM
+TODO
+### TAURI_WEBVIEW_AUTOMATION
+Enables webview automation (Linux Only).
+### TAURI_ANDROID_PROJECT_PATH
+Path of the tauri android project, usually will be `<project>/src-tauri/gen/android`.
+### TAURI_IOS_PROJECT_PATH
+Path of the tauri iOS project, usually will be `<project>/src-tauri/gen/ios`.
+
+## Tauri CLI Hook Commands
+
+These environment variables are set for each hook command (`beforeDevCommand`, `beforeBuildCommand`, ...etc) which could be useful to conditionally build your frontend or execute a specific action.
+
+### TAURI_ENV_DEBUG
+`true` for `dev` command or `build --debug`, `false` otherwise.
+### TAURI_ENV_TARGET_TRIPLE
+Target triple the CLI is building.
+### TAURI_ENV_ARCH
+Target arch, `x86_64`, `aarch64`...etc.
+### TAURI_ENV_PLATFORM
+Target platform, `windows`, `darwin`, `linux`...etc.
+### TAURI_ENV_PLATFORM_VERSION
+Build platform version
+### TAURI_ENV_FAMILY
+Target platform family `unix` or `windows`.