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*** 8,13 ****
--- 8,19 ----
  This list also does not include adding support for features (e.g., **-u** and
  so on).
  
+ - Easy: speed up the uid/gid mapping/remapping with a simple table.
+   Right now, the code in 
+   [ids.c](https://github.com/kristapsdz/openrsync/blob/master/ids.c)
+   is simple, but could easily bottleneck with a large number of groups
+   and files with **-g**.
+ 
  - Easy: add a hashtable to `blk_find()` in
    [blocks.c](https://github.com/kristapsdz/openrsync/blob/master/blocks.c)
    for quickly looking up fast-hash matches.