diff --git a/changes/pr-338.md b/changes/pr-338.md
new file mode 100644
index 000000000..92defddd7
--- /dev/null
+++ b/changes/pr-338.md
@@ -0,0 +1 @@
+manif-geom-cpp, geometry, signals-cpp, pysignals RELEASE 1.0.
diff --git a/flake.lock b/flake.lock
index 8e1b2c03d..7db393ab4 100644
--- a/flake.lock
+++ b/flake.lock
@@ -54,11 +54,11 @@
     "book-notes-sync": {
       "flake": false,
       "locked": {
-        "lastModified": 1717871019,
-        "narHash": "sha256-0ic7jZirFebHbYtQDoFcdJmuVKAkwiKVq8lmE0byy9I=",
+        "lastModified": 1757732366,
+        "narHash": "sha256-88f6xe4Ycgg9SqmdPU80JM5SOeYrYUKmWLHPnW2Vd6o=",
         "owner": "goromal",
         "repo": "book-notes-sync",
-        "rev": "3f96818f223520e45dea7a98f7b3287ab23b5a5a",
+        "rev": "619a9a6b4aa32784b28d2f501f4939c60ec96c3e",
         "type": "github"
       },
       "original": {
@@ -102,11 +102,11 @@
     "daily_tactical_server": {
       "flake": false,
       "locked": {
-        "lastModified": 1757261352,
-        "narHash": "sha256-mZXG+sQrmbZma7wVw9u2jn++nLHEK+rHg0mhycYJeaA=",
+        "lastModified": 1757732376,
+        "narHash": "sha256-UfWYR+ihLU58AGX9o+YrRaNynnC/G2HSS5XR6D82MVY=",
         "owner": "goromal",
         "repo": "daily_tactical_server",
-        "rev": "7c73cfd871778ea9b21099080205acdae5442a8e",
+        "rev": "7bbc799070dcecc807016da2516000a3d8fac31c",
         "type": "github"
       },
       "original": {
@@ -225,6 +225,7 @@
       },
       "original": {
         "owner": "goromal",
+        "ref": "refs/tags/release/1.0",
         "repo": "geometry",
         "type": "github"
       }
@@ -264,15 +265,16 @@
     "manif-geom-cpp": {
       "flake": false,
       "locked": {
-        "lastModified": 1746337994,
-        "narHash": "sha256-4MEQqEmZs7D2asF5c/rc3NzDDui/0uAlZWlasGUdlRo=",
+        "lastModified": 1742189520,
+        "narHash": "sha256-0xF03b3GfZrJpjspc7MsJYiTl/mBrbVjVNl4c4iYrxQ=",
         "owner": "goromal",
         "repo": "manif-geom-cpp",
-        "rev": "f7013ab24f5ac59a220d960994d627beb2ffdd6c",
+        "rev": "9bbb6c47c8d0b2d90a53e868cfea855354106bad",
         "type": "github"
       },
       "original": {
         "owner": "goromal",
+        "ref": "refs/tags/release/1.0",
         "repo": "manif-geom-cpp",
         "type": "github"
       }
@@ -707,15 +709,16 @@
     "signals-cpp": {
       "flake": false,
       "locked": {
-        "lastModified": 1735182528,
-        "narHash": "sha256-Gj6E/vaW/xQC3pIYm1A+Zj5Rza7m2iuhA2faM1Fm1Tc=",
+        "lastModified": 1757742916,
+        "narHash": "sha256-Mzxmi6WMRvmZtA+5vK8bwL4h0FTRl8oZikcjJ510JBI=",
         "owner": "goromal",
         "repo": "signals-cpp",
-        "rev": "3b1cdfe2ce66f96095b762673d7ffc2ef1f666ea",
+        "rev": "fb143d2ac94b901eb6c42b2a24abfd7b245505cc",
         "type": "github"
       },
       "original": {
         "owner": "goromal",
+        "ref": "release/1",
         "repo": "signals-cpp",
         "type": "github"
       }
@@ -884,11 +887,11 @@
     "wiki-tools": {
       "flake": false,
       "locked": {
-        "lastModified": 1717870970,
-        "narHash": "sha256-mMB/Vj6jA7nJqsJPPX8FX1EwaJDJuxP/gzXT3cyOZkg=",
+        "lastModified": 1757732353,
+        "narHash": "sha256-7g3U7VJGqd9tJGM9IDEwhq9mGd1vz+48QGYYl7VnlmY=",
         "owner": "goromal",
         "repo": "wiki-tools",
-        "rev": "60619a5e7f0c0005903153074c6963782984b479",
+        "rev": "2829dcf9f77be1927dede3e0faa720c552cdf2f0",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 3c709c9f3..b75e8a5f1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -44,7 +44,7 @@
       "git+https://gist.github.com/fb15f44150ca4e0951acaee443f72d3e";
     find_rotational_conventions.flake = false;
 
-    geometry.url = "github:goromal/geometry";
+    geometry.url = "github:goromal/geometry?ref=refs/tags/release/1.0";
     geometry.flake = false;
 
     gmail-parser.url = "github:goromal/gmail_parser";
@@ -56,7 +56,8 @@
       "git+https://gist.github.com/e64b6bdc8a176c38092e9bde4c434d31";
     makepyshell.flake = false;
 
-    manif-geom-cpp.url = "github:goromal/manif-geom-cpp";
+    manif-geom-cpp.url =
+      "github:goromal/manif-geom-cpp?ref=refs/tags/release/1.0";
     manif-geom-cpp.flake = false;
 
     manif-geom-rs.url = "github:goromal/manif-geom-rs";
@@ -121,7 +122,7 @@
     secure-delete.url = "github:goromal/secure-delete";
     secure-delete.flake = false;
 
-    signals-cpp.url = "github:goromal/signals-cpp";
+    signals-cpp.url = "github:goromal/signals-cpp?ref=release/1";
     signals-cpp.flake = false;
 
     simple-image-editor.url = "github:goromal/simple-image-editor";
diff --git a/pkgs/cxx-packages/manif-geom-cpp/default.nix b/pkgs/cxx-packages/manif-geom-cpp/default.nix
index d227c332f..d3a0ae1bb 100644
--- a/pkgs/cxx-packages/manif-geom-cpp/default.nix
+++ b/pkgs/cxx-packages/manif-geom-cpp/default.nix
@@ -14,9 +14,13 @@ clangStdenv.mkDerivation {
     longDescription = ''
       [Repository](https://github.com/goromal/manif-geom-cpp)
 
+      [Documentation](https://andrewtorgesen.com/manif-geom-cpp)
+
+      [Code Coverage](https://andrewtorgesen.com/manif-geom-cpp/coverage)
+
       Operationally very similar to variations on Eigen's `Quaternion<T>` class, but with added chart maps and rules for addition and subtraction on tangent spaces. Meant to be used with nonlinear least-squares solvers like Ceres Solver which take advantage of templating to implement auto-differentiation on arbitrary mathematical formulations in code.
 
-      The SO(3) math is based on [my notes](https://notes.andrewtorgesen.com/doku.php?id=public:autonomy:math:3d-geometry:implementing-rotations) on 3D rotation representations.
+      The SO(3) math is based on [my notes](https://andrewtorgesen.com/notes/Autonomy/Math_Fundamentals/3D_Geometry/Rotations_Robotics_Field_Guide.html) on 3D rotation representations.
 
       ## Including in Your Project With CMake
 
diff --git a/pkgs/cxx-packages/signals-cpp/default.nix b/pkgs/cxx-packages/signals-cpp/default.nix
index 7b5e61c4d..955a8c205 100644
--- a/pkgs/cxx-packages/signals-cpp/default.nix
+++ b/pkgs/cxx-packages/signals-cpp/default.nix
@@ -14,7 +14,9 @@ clangStdenv.mkDerivation {
     longDescription = ''
       [Repository](https://github.com/goromal/signals-cpp)
 
-      Examples documented in the [unit tests](https://github.com/goromal/signals-cpp/tree/master/tests).
+      [Documentation](https://andrewtorgesen.com/signals-cpp)
+
+      Examples also documented in the [unit tests](https://github.com/goromal/signals-cpp/tree/master/tests).
     '';
   };
 }