diff --git a/.github/labels.yml b/.github/labels.yml
index 30c8c0f..6f32df8 100644
--- a/.github/labels.yml
+++ b/.github/labels.yml
@@ -241,6 +241,10 @@
   description: "Issues with using OpenROAD with the PDK."
   color: "054caa"
 
+- name: "tools-ngspice"
+  description: "Issues with using Ngspice with the PDK."
+  color: "054caa"
+  
 # Partially open or with closed source dependencies.
 - name: "tools-BAG"
   description: "Issues with using the Berkeley Analog Generator (BAG) with the PDK."
diff --git a/.github/workflows/manage-labels.yml b/.github/workflows/manage-labels.yml
index 35b6777..838c2c0 100644
--- a/.github/workflows/manage-labels.yml
+++ b/.github/workflows/manage-labels.yml
@@ -8,11 +8,11 @@
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       -
         name: Run Labeler
         if: success()
-        uses: crazy-max/ghaction-github-labeler@v3.1.0
+        uses: crazy-max/ghaction-github-labeler@v4.0.0
         with:
           yaml_file: .github/labels.yml
         env:
diff --git a/.gitmodules b/.gitmodules
index 0874f66..464b6c4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -160,7 +160,6 @@
 	branch = branch-0.1.0
 	shallow = true
 	fetchRecurseSubmodules = false
-
 # sky130_fd_sc_lp
 [submodule "libraries/sky130_fd_sc_lp/latest"]
 	path = libraries/sky130_fd_sc_lp/latest
@@ -244,3 +243,32 @@
 	branch = branch-0.0.1
 	shallow = true
 	fetchRecurseSubmodules = false
+#sky130_fd_pr_reram
+[submodule "libraries/sky130_fd_pr_reram/v0.0.9"]
+	path = libraries/sky130_fd_pr_reram/v0.0.9
+	url = https://github.com/google/skywater-pdk-libs-sky130_fd_pr_reram.git
+	branch = branch-0.0.9
+	shallow = true
+	fetchRecurseSubmodules = false
+[submodule "libraries/sky130_fd_pr_reram/v2.0.1"]
+	path = libraries/sky130_fd_pr_reram/v2.0.1
+	url = https://github.com/google/skywater-pdk-libs-sky130_fd_pr_reram.git
+	branch = branch-2.0.1
+	shallow = true
+	fetchRecurseSubmodules = false
+[submodule "libraries/sky130_fd_pr_reram/v2.0.2"]
+	path = libraries/sky130_fd_pr_reram/v2.0.2
+	url = https://github.com/google/skywater-pdk-libs-sky130_fd_pr_reram.git
+	branch = branch-2.0.2
+	shallow = true
+	fetchRecurseSubmodules = false
+[submodule "libraries/sky130_fd_pr_reram/v2.0.3"]
+	path = libraries/sky130_fd_pr_reram/v2.0.3
+	url = https://github.com/google/skywater-pdk-libs-sky130_fd_pr_reram.git
+	branch = branch-2.0.3
+	shallow = true
+	fetchRecurseSubmodules = false
+[submodule "libraries/sky130_fd_pr_reram/latest"]
+	path = libraries/sky130_fd_pr_reram/latest
+	url = https://github.com/google/skywater-pdk-libs-sky130_fd_pr_reram.git
+	branch = main
diff --git a/docs/environment.yml b/docs/environment.yml
index 7100f6f..d8345d8 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -20,7 +20,6 @@
 dependencies:
 - python=3.8
 - pip
-- yosys
 - netlistsvg
 # Packages installed from PyPI
 - pip:
diff --git a/libraries/sky130_fd_pr_reram/latest b/libraries/sky130_fd_pr_reram/latest
new file mode 160000
index 0000000..48c8310
--- /dev/null
+++ b/libraries/sky130_fd_pr_reram/latest
@@ -0,0 +1 @@
+Subproject commit 48c8310e464157d797c78cb2e6d6b5a21d710c20
diff --git a/libraries/sky130_fd_pr_reram/v0.0.9 b/libraries/sky130_fd_pr_reram/v0.0.9
new file mode 160000
index 0000000..1ed5750
--- /dev/null
+++ b/libraries/sky130_fd_pr_reram/v0.0.9
@@ -0,0 +1 @@
+Subproject commit 1ed57501be4b8b7816942b7eac6f864910025799
diff --git a/libraries/sky130_fd_pr_reram/v2.0.1 b/libraries/sky130_fd_pr_reram/v2.0.1
new file mode 160000
index 0000000..21212f5
--- /dev/null
+++ b/libraries/sky130_fd_pr_reram/v2.0.1
@@ -0,0 +1 @@
+Subproject commit 21212f530de3b071e4737a7622ce3c7dce1527bb
diff --git a/libraries/sky130_fd_pr_reram/v2.0.2 b/libraries/sky130_fd_pr_reram/v2.0.2
new file mode 160000
index 0000000..ef3ec3e
--- /dev/null
+++ b/libraries/sky130_fd_pr_reram/v2.0.2
@@ -0,0 +1 @@
+Subproject commit ef3ec3edd3d30a35ff04011fd3afc8f2cdd1d06f
diff --git a/libraries/sky130_fd_pr_reram/v2.0.3 b/libraries/sky130_fd_pr_reram/v2.0.3
new file mode 160000
index 0000000..d3c4505
--- /dev/null
+++ b/libraries/sky130_fd_pr_reram/v2.0.3
@@ -0,0 +1 @@
+Subproject commit d3c4505de8ec4c52fe70c276b351929297ffcd6e