add env vars

.env.sample

@@ -2,7 +2,25 @@ TYPE=privatebin
 
 DOMAIN=privatebin.example.com
 
-## Domain aliases
-#EXTRA_DOMAINS=', `www.privatebin.example.com`'
-
 LETS_ENCRYPT_ENV=production
+
+PB_DISCUSSIONS_ENABLE=true
+PB_DISCUSSIONS_TIMECODE_COMMENTS=false
+PB_PASSWORD_ENABLE=true
+PB_QRCODE_ENABLE=true
+PB_FILE_UPLOAD_ENABLE=false
+
+PB_THEME=bootstrap5 # https://privatebin.info/screenshots.html
+PB_SYNTAX_HIGHLIGHTING_THEME="sons-of-obsidian"
+
+PB_INFO="" # supports html, use single quotes
+PB_NOTICE="" # plaintext only
+
+PB_FILE_UPLOAD_SIZE_LIMIT=10485760 # expressed in bytes
+PB_RATE_LIMITING=10 # time limit between calls from the same IP address in seconds
+
+PB_BURN_AFTER_READING_PRESELECT=false
+PB_DISCUSSIONS_PRESELECT=false
+PB_DEFAULT_FORMATTER=plaintext # options: plaintext syntaxhighlighting & markdown
+
+PB_EMAIL_ENABLE=true