diff --git a/blt/blt.yml b/blt/blt.yml
index 57fe019c0..58ad3e5fa 100644
--- a/blt/blt.yml
+++ b/blt/blt.yml
@@ -180,6 +180,7 @@ multisites:
   - suac
   - swshumsci_sandbox
   - symsys
+  - symsys2023
   - tessier_lavigne_lab
   - texttechnologies
   - urbanstudies
diff --git a/drush/sites/dfetter2022__humsci.site.yml b/drush/sites/dfetter2022__humsci.site.yml
deleted file mode 100644
index 267579d8b..000000000
--- a/drush/sites/dfetter2022__humsci.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: dfetter2022.humsci
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: dfetter2022-dev.humsci.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: dfetter2022-stage.humsci.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: dfetter2022-prod.humsci.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/dsresearch2022.site.yml b/drush/sites/dsresearch2022.site.yml
deleted file mode 100644
index 32e04d1f7..000000000
--- a/drush/sites/dsresearch2022.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: dsresearch2022
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: dsresearch2022-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: dsresearch2022-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: dsresearch2022-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/duboislab2022.site.yml b/drush/sites/duboislab2022.site.yml
deleted file mode 100644
index accad806a..000000000
--- a/drush/sites/duboislab2022.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: duboislab2022
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: duboislab2022-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: duboislab2022-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: duboislab2022-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/facultyaffairs_humsci2021.site.yml b/drush/sites/facultyaffairs_humsci2021.site.yml
deleted file mode 100644
index 399cf364a..000000000
--- a/drush/sites/facultyaffairs_humsci2021.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: facultyaffairs-humsci2021
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: facultyaffairs-humsci2021-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: facultyaffairs-humsci2021-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: facultyaffairs-humsci2021-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/francestanford2022.site.yml b/drush/sites/francestanford2022.site.yml
deleted file mode 100644
index 3b3f9bb27..000000000
--- a/drush/sites/francestanford2022.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: francestanford2022
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: francestanford2022-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: francestanford2022-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: francestanford2022-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/gavin_wright2022__humsci.site.yml b/drush/sites/gavin_wright2022__humsci.site.yml
deleted file mode 100644
index 3e20b206e..000000000
--- a/drush/sites/gavin_wright2022__humsci.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: gavin-wright2022.humsci
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: gavin-wright2022-dev.humsci.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: gavin-wright2022-stage.humsci.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: gavin-wright2022-prod.humsci.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/gus_humsci2021.site.yml b/drush/sites/gus_humsci2021.site.yml
deleted file mode 100644
index 7c9c35768..000000000
--- a/drush/sites/gus_humsci2021.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: gus-humsci2021
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: gus-humsci2021-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: gus-humsci2021-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: gus-humsci2021-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/heidi_williams2022__humsci.site.yml b/drush/sites/heidi_williams2022__humsci.site.yml
deleted file mode 100644
index 94d24bba2..000000000
--- a/drush/sites/heidi_williams2022__humsci.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: heidi-williams2022.humsci
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: heidi-williams2022-dev.humsci.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: heidi-williams2022-stage.humsci.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: heidi-williams2022-prod.humsci.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/humanitiescore2022.site.yml b/drush/sites/humanitiescore2022.site.yml
deleted file mode 100644
index cb2b412fe..000000000
--- a/drush/sites/humanitiescore2022.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: humanitiescore2022
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: humanitiescore2022-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: humanitiescore2022-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: humanitiescore2022-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/insidehs2022.site.yml b/drush/sites/insidehs2022.site.yml
deleted file mode 100644
index beeb38862..000000000
--- a/drush/sites/insidehs2022.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: insidehs2022
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: insidehs2022-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: insidehs2022-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: insidehs2022-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/insidehs2023.site.yml b/drush/sites/insidehs2023.site.yml
deleted file mode 100644
index 81db0bbb6..000000000
--- a/drush/sites/insidehs2023.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: insidehs2023
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: insidehs2023-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: insidehs2023-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: insidehs2023-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/lowe2022.site.yml b/drush/sites/lowe2022.site.yml
deleted file mode 100644
index 7649ff652..000000000
--- a/drush/sites/lowe2022.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: lowe2022
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: lowe2022-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: lowe2022-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: lowe2022-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/mrc2021.site.yml b/drush/sites/mrc2021.site.yml
deleted file mode 100644
index a3af08e8f..000000000
--- a/drush/sites/mrc2021.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: mrc2021
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: mrc2021-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: mrc2021-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: mrc2021-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/popstudies2023.site.yml b/drush/sites/popstudies2023.site.yml
deleted file mode 100644
index 80aba538c..000000000
--- a/drush/sites/popstudies2023.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: popstudies2023
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: popstudies2023-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: popstudies2023-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: popstudies2023-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/researchadmin_humsci2022.site.yml b/drush/sites/researchadmin_humsci2022.site.yml
deleted file mode 100644
index 69bc8f671..000000000
--- a/drush/sites/researchadmin_humsci2022.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: researchadmin-humsci2022
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: researchadmin-humsci2022-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: researchadmin-humsci2022-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: researchadmin-humsci2022-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod
diff --git a/drush/sites/shenlab2022.site.yml b/drush/sites/shenlab2022.site.yml
deleted file mode 100644
index c3bdf0773..000000000
--- a/drush/sites/shenlab2022.site.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-local:
-  uri: shenlab2022
-  root: '${env.cwd}/docroot'
-dev:
-  root: /var/www/html/humscigryphon.dev/docroot
-  uri: shenlab2022-dev.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.dev
-stage:
-  root: /var/www/html/humscigryphon.test/docroot
-  uri: shenlab2022-stage.stanford.edu
-  host: staging-25390.prod.hosting.acquia.com
-  user: humscigryphon.test
-prod:
-  root: /var/www/html/humscigryphon.prod/docroot
-  uri: shenlab2022-prod.stanford.edu
-  host: web-42199.prod.hosting.acquia.com
-  user: humscigryphon.prod