diff --git a/.env.example b/.env.example
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--- /dev/null
+++ b/.env.example
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+# FS API related.
+ROMHACKPLAZAFS_SECRET_KEY=""
+ROMHACKPLAZAFS_FILE_PATH=""
+ROMHACKPLAZAFS_FILE_PUBLIC_PATH=""
+ROMHACKPLAZAFS_FILE_SRC_PATH=""
+ROMHACKPLAZAFS_FILE_FILES_PATH=""
+ROMHACKPLAZAFS_FILE_LOG_PATH=""
+
+# Internet related.
+ROMHACKPLAZAFS_URL=""
+ROMHACKPLAZAFS_MAIN_URL=""
+ROMHACKPLAZAFS_PATCHER_URL=""
+
+# Files servers allowed to do a download. Each separated by space.
+ROMHACKPLAZAFS_DOWNLOAD_ALLOWED_PARENT_DOMAIN=""
+
+# Allowed extensions for a patch file to be an online one. Each separated by space.
+ROMHACKPLAZAFS_PATCHER_ALLOWED_EXT=""