diff --git a/phosphorus/srv/docker/mastodon/.env b/phosphorus/srv/docker/mastodon/.env
index 6e3b346..ffdaf1e 100644
--- a/phosphorus/srv/docker/mastodon/.env
+++ b/phosphorus/srv/docker/mastodon/.env
@@ -1,24 +1,32 @@
+# instance configuration
 LOCAL_DOMAIN=merping.synth.download
-
 AUTHORIZED_FETCH=true
 
+# max character/profile related limits
 MAX_TOOT_CHARS=100000
 MAX_BIO_CHARS=100000
+MAX_DISPLAY_NAME_CHARS=200
+MAX_PINNED_TOOTS=15
 
-# 5mb, 5mb
-MAX_EMOJI_SIZE=5242880
-MAX_REMOTE_EMOJI_SIZE=5242880
+# max feeds
+MAX_FEED_HASHTAGS=10
 
-# 200mb, 200mb
-MAX_IMAGE_SIZE=209715200
-MAX_VIDEO_SIZE=209715200
+# max media size
+MAX_IMAGE_SIZE=209715200 # 200mb
+MAX_VIDEO_SIZE=209715200 # 200mb
+MAX_EMOJI_SIZE=5242880 # 5mb
+MAX_REMOTE_EMOJI_SIZE=5242880 # 5mb
 
+# max poll and reactions count
 MAX_POLL_OPTIONS=25
+MAX_POLL_OPTION_CHARS=500
 MAX_REACTIONS=6
 
+# max media per post count, 16 to match with misskey's
 MAX_MEDIA_ATTACHMENTS=16
 MAX_REMOTE_MEDIA_ATTACHMENTS=16
 
+# reply backfill
 FETCH_REPLIES_ENABLED=true
 FETCH_REPLIES_COOLDOWN_MINUTES=15
 FETCH_REPLIES_INITIAL_WAIT_MINUTES=5
@@ -26,6 +34,7 @@ FETCH_REPLIES_MAX_GLOBAL=1000
 FETCH_REPLIES_MAX_SINGLE=500
 FETCH_REPLIES_MAX_PAGES=500
 
+# tell federation to use more cores
 SIDEKIQ_CONCURRENCY=20
 
 GITHUB_REPOSITORY=melontini/mastodon
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