First commit epics meta modules

README.md

@@ -1,3 +1,33 @@
 # epics-module-meta
 
-Meta repository with references to third party modules and tags to build them
+Meta repository with references to third party modules and tags to build them.
+
+This is very barebones, please improve as you see fit.
+This at least allows us to pin down the versions for when we need to rebuild everything
+
+## How to
+
+Create a module yaml file in the `modules` directory, the most common case we build an already tagged version from GFS.
+
+```
+$ cat modules/autosave.yaml
+module: autosave
+repo: git@git.psi.ch:epics_driver_modules/autosave.git
+tag: 5.7.18
+```
+
+Build with:
+```
+./build modules/autosave.yaml
+```
+
+Install with:
+```
+./build modules/autosave.yaml install
+```
+
+If you have your modules directory in a non-standard location:
+```
+export EPICS_MODULES=/path/to/your/modules
+```
+in beforehand.