adds gitea action

.gitea/workflows/action.yaml

@@ -0,0 +1,14 @@
+name: Test And Build
+on: [push]
+
+jobs:
+  Build:
+    runs-on: linepics
+    steps:
+      - name: checkout repo
+        uses: actions/checkout@v4
+        with:
+          submodules: 'true'
+      - run: |
+          sed -i 's/ARCH_FILTER=.*/ARCH_FILTER=linux%/' Makefile
+          make install

templates/shutter.substitutions

@@ -22,8 +22,8 @@ file "$(sinqSPS_DB)/readbit.db"
 
 # The way that the strings are currently implemented in the SPS, the first two
 # bytes are the maximum length of the string and the size of the current string
-# in the register. The epics driver doesn't seem to handle this currently, so
-# we add two to the offset to skip these bytes.
+# in the register.
+
 file "$(sinqSPS_DB)/readstring.db"
 {
   pattern