diff --git a/F/FlatMat/Compat.toml b/F/FlatMat/Compat.toml
new file mode 100644
index 000000000000000..a5125c62018ddff
--- /dev/null
+++ b/F/FlatMat/Compat.toml
@@ -0,0 +1,2 @@
+[1]
+julia = "1.11.2-1"
diff --git a/F/FlatMat/Deps.toml b/F/FlatMat/Deps.toml
new file mode 100644
index 000000000000000..e69de29bb2d1d64
diff --git a/F/FlatMat/Package.toml b/F/FlatMat/Package.toml
new file mode 100644
index 000000000000000..3b4d90a83d30cfa
--- /dev/null
+++ b/F/FlatMat/Package.toml
@@ -0,0 +1,3 @@
+name = "FlatMat"
+uuid = "7c869e6c-c1f0-4866-9669-0eca92445837"
+repo = "https://github.com/thomasc791/FlatMat.jl.git"
diff --git a/F/FlatMat/Versions.toml b/F/FlatMat/Versions.toml
new file mode 100644
index 000000000000000..74ff2a474dbb769
--- /dev/null
+++ b/F/FlatMat/Versions.toml
@@ -0,0 +1,2 @@
+["1.0.0-DEV"]
+git-tree-sha1 = "3b7c9814be677947ee330b1970128a76545ac0eb"
diff --git a/Registry.toml b/Registry.toml
index d59b94e197e3f8c..0656ebc6fb75cf0 100644
--- a/Registry.toml
+++ b/Registry.toml
@@ -5834,6 +5834,7 @@ some amount of consideration when choosing package names.
 7c7805af-46cc-48c9-995b-ed0ed2dc909a = { name = "Clapeyron", path = "C/Clapeyron" }
 7c79adba-b25c-591c-9e76-5703f3b8509b = { name = "libmcfp_jll", path = "jll/L/libmcfp_jll" }
 7c7c7bd4-5f1c-5db3-8b3f-fcf8282f06da = { name = "nlohmann_json_jll", path = "jll/N/nlohmann_json_jll" }
+7c869e6c-c1f0-4866-9669-0eca92445837 = { name = "FlatMat", path = "F/FlatMat" }
 7c893195-952b-5c83-bb6e-be12f22eed51 = { name = "HierarchicalMatrices", path = "H/HierarchicalMatrices" }
 7cab812c-4aca-53c6-a1cf-d62f3ca054b4 = { name = "AmazonCACerts_jll", path = "jll/A/AmazonCACerts_jll" }
 7cb0a576-ebde-5e09-9194-50597f1243b4 = { name = "MPICH_jll", path = "jll/M/MPICH_jll" }