add README

README.md

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+# logseq-watch
+
+First: I don't know anything about clojure or too much about node.  As long as I
+can continue to get builds to work, I'll keep this updated.  But if it gets
+complicated, I'm out :)
+
+This is a docker container that provides the db-sync for self-hosted logseq
+sync.  I built it following the instructions at https://4shutosh.com/selfhost-logseq except instead of "VPS Deployement" I did a "Docker Deployment".
+
+# Usage
+!!As of 2026-03-13, this has only been tested locally on port 8787, so currently is extremely limited!!.
+Eventually this will be put it behind an NGINX reverse proxy with a dedicated name, that I have physically set
+up on my server.  The docker-compose file could be extended to support that in
+docker, but I am probably not going to be testing it that way myself.
+
+Make sure you define a data directory that persists.  If you don't, your sync
+data will be lost when the container restarts.  The example docker-compose file
+is using a bind mount, you could use a named mount instead if you prefer.  The
+docker-compose example has commented out lines that show that.
+
+This is very much a work in progress