diff --git a/todo.txt b/todo.txt
index 09c141b..17e9bb7 100644
--- a/todo.txt
+++ b/todo.txt
@@ -3,24 +3,26 @@
 - report Gancio flaw: api/events (https://demo.gancio.org/api/events) does not return descriptions (maybe it would have been easier to write gancioff using api/events)
 - couldn't the feed include, maybe in "x-fields", the alt-text for images when present, and other data such as date of event, and so on?
 
-* if a Gancio post gets edited, will it be posted with a new guid? (no, fixed)
+? add "modified" on top of reposts for modified announcements
+- add the possibility to modify a post when the announcement has been changed, instead of reposting it
 - explain in the help text how gancioff cuts posts that are too long
-* if an image can't be posted, don't post the post
 - make posting images optional
-* gettlds and --update-language-codes should save elsewhere
 ? add "[pubDate] => Wed, 09 Oct 2024 20:52:33 GMT" from XML items to post
-* add runtime control for clean exits (possible "fclose($fh);") in case of ctrl+c and the likes
 - verify "wait for server to process file" code works by uploading a big video, and whether on mastodon < 4.0.0 it is really triggered for images too
 - config file: make it possible to define how long to wait for server to process a file
 - config file: make it possible to define how old records in state file can be before they get discarded
+* add alt-text
+* if a Gancio post gets edited, will it be posted with a new guid? (no, fixed)
+* if an image can't be posted, don't post the post
+* gettlds and --update-language-codes should save elsewhere
+* add runtime control for clean exits (possible "fclose($fh);") in case of ctrl+c and the likes
 * config file: make it possible to define posts language
 * config file: make it possible to define posts visibility
 * systemd sample unit files
 * check maximum upload size and check it against file size
-! make it possible to define a "defaul hashtag" to be put before the others (no, if one wants to only see the events they just need to open the profile)
+! make it possible to define a "defaul hashtag" to be put before the others (no, if one wants to only see the announcements they just need to open the profile)
 * make it possible to define a maximum period of time for storing guids (done, set it to 365 days, not configurable atm)
-* use the state file to save every id of correctly posted events
+* use the state file to save every id of correctly posted announcements
 * set cknap on recurring curl usage
 * add (optional) image upload
-
-
+! [no, it's not possible to reuse an already uploaded image id] on reposts, maybe it's possible to reuse the image that was posted on previous post, if it has not changed; it is possible to see if an attached image has changed by storing its filename: it changes on new image uploads (although it changes also when the same image gets re-uploaded); and: is it possible to reuse an already uploaded image on Mastodon, based on image id?