diff --git a/Registry.toml b/Registry.toml
index b541f76951fef50..3ea1b5158277817 100644
--- a/Registry.toml
+++ b/Registry.toml
@@ -10841,6 +10841,7 @@ c967b8ff-7eea-41b9-8a9d-36c76a634080 = { name = "RunStatistics", path = "R/RunSt
 c9817921-aac3-4215-a82e-d746b8a84f94 = { name = "CStructures", path = "C/CStructures" }
 c9880795-194d-450c-832d-1e8a03a8ecd1 = { name = "OCReract", path = "O/OCReract" }
 c9986a66-5c92-4813-8696-a7ec84c806c8 = { name = "OrdinaryDiffEqNordsieck", path = "O/OrdinaryDiffEqNordsieck" }
+c99f5fee-6cdb-4bf1-806f-d7690e6ee6f7 = { name = "Semisimple", path = "S/Semisimple" }
 c9a035f4-d403-5e6b-8649-6be755bc4798 = { name = "JWAS", path = "J/JWAS" }
 c9b2f978-7543-4802-ae44-75068f23ee64 = { name = "IntelITT", path = "I/IntelITT" }
 c9b9de95-37f0-4dea-82f9-4245f29ba0b6 = { name = "TSPSolvers", path = "T/TSPSolvers" }
diff --git a/S/Semisimple/Compat.toml b/S/Semisimple/Compat.toml
new file mode 100644
index 000000000000000..f1a9363dc969300
--- /dev/null
+++ b/S/Semisimple/Compat.toml
@@ -0,0 +1,8 @@
+[1]
+Aqua = "0.8"
+LRUCache = "1.6.0 - 1"
+LinearAlgebra = "1"
+PrecompileTools = "1"
+Preferences = "1"
+StaticArrays = "1"
+julia = "1.9.0 - 1"
diff --git a/S/Semisimple/Deps.toml b/S/Semisimple/Deps.toml
new file mode 100644
index 000000000000000..77bc18f56fd380b
--- /dev/null
+++ b/S/Semisimple/Deps.toml
@@ -0,0 +1,7 @@
+[1]
+Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
+LRUCache = "8ac3fa9e-de4c-5943-b1dc-09c6b5f20637"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+PrecompileTools = "aea7be01-6a6a-4083-8856-8a6e6704d82a"
+Preferences = "21216c6a-2e73-6563-6e65-726566657250"
+StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
diff --git a/S/Semisimple/Package.toml b/S/Semisimple/Package.toml
new file mode 100644
index 000000000000000..ed6b57012e86bf4
--- /dev/null
+++ b/S/Semisimple/Package.toml
@@ -0,0 +1,3 @@
+name = "Semisimple"
+uuid = "c99f5fee-6cdb-4bf1-806f-d7690e6ee6f7"
+repo = "https://github.com/HomogeneousTools/Semisimple.jl.git"
diff --git a/S/Semisimple/Versions.toml b/S/Semisimple/Versions.toml
new file mode 100644
index 000000000000000..5ed410b4dafe41b
--- /dev/null
+++ b/S/Semisimple/Versions.toml
@@ -0,0 +1,2 @@
+["1.0.0"]
+git-tree-sha1 = "3d35117ee163ce36d7097b9f0ffb55dc718f21ec"