initial

README.md

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+# Snowflake UID Service
+
+* (0..41] bits for .01s since $EPOCH (697y span)
+* (41..54] bits for sequence (4096)
+* (54..64] bits for hostid (1024 hosts)
+
+for up to `419_430_400 = 1024*100*4096` ids per second
+
+## Original
+
+* source: https://github.com/twitter-archive/snowflake/tree/snowflake-2010
+* tldr
+   * [0..41] bits for timestamp
+   * (41..x] bits for hostid
+   * (x..64) bits for sequence

go.mod

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+module snowflake-uid-service
+
+go 1.20