Forget this every time smh

README.md

@@ -69,16 +69,15 @@ Options:
           This will result in a significant drop in performance due to the constant terminal output.
 
   -c, --checksum
-          Output an index containing the hash of every file using the specified algorithm.
-          Uses the default algorithm. To specify one use --calgo. 
-          Note: specifying --calgo makes this redundant.
+          Generate an index of file hashes and their associated file names, and print it.
+          The algorithm used by default is Xxh3, which is the recommended choice. Though
+          if you want to use a different algorithm, use --checksum-with (-C) instead.
 
   -C, --checksum-with <algorithm>
           Performs --checksum but with the specified hashing algorithm.
-          Using xxh3 is the recommended choice. Unless you have a reason to use something else,
-          stick with the default. SHA2 and MD5 are provided for compatibility with other tools
-          and existing data. If you're only using jw, you stand to gain a large increase in
-          performance by using xxh3.
+          If another argument changes the operating mode of the program, e.g. --diff, then
+          the algorithm specified will only be stored, and no checksum will be performed.
+          Stick to Xxh3 and just use -c unless you have a reason to use a different one.
 
           [default: xxh3]
           [possible values: xxh3, sha224, sha256, sha384, sha512, md5]
@@ -90,6 +89,13 @@ Options:
           missing in the subsequent files, or if the subsequent files have entries not
           present in the first file, that will be reported as well.
 
+          The hash length must be known for -D to parse the input files and separate
+          hashes from file paths. A length of 16 is assumed by default as that's how
+          long Xxh3 hashes are. If you used a different algorithm however, then you
+          must specify the algorithm before -D, e.g. `jw -C sha256 -D file1 file2`
+
+          If you stuck with defaults: `jw -c`, then you can just `jw -D file1 file2`
+
   -d, --depth <limit>
           The recursion depth limit. Setting this to 1 effectively disables recursion.
 
@@ -105,8 +111,9 @@ Options:
 
   -s, --stats
           Count the number of files, dirs, and other entries, and print at the end.
-          This will decrease performance. Unnoticeable in most cases, but the more
-          files you're traversing, the more it begins to add up.
+          This will decrease performance. This will cause a significant slowdown
+          and is primarily here for debugging or benchmarking. A more efficient
+          method to do this will be implemented in the future.
 
   -h, --help
           Print help (see a summary with '-h')