diff --git a/.gitignore b/.gitignore
index 170fcf24..9014aaa6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@ tests/data
 *.code-workspace
 PolySolveOptions.cmake
 .vs
+src/polysolve/autogen
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 91826934..77b47733 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -183,6 +183,34 @@ target_compile_definitions(polysolve_linear PRIVATE POLYSOLVE_LINEAR_SPEC="${PRO
 target_compile_definitions(polysolve PRIVATE POLYSOLVE_NON_LINEAR_SPEC="${PROJECT_SOURCE_DIR}/nonlinear-solver-spec.json")
 target_compile_definitions(polysolve_linear PUBLIC POLYSOLVE_JSON_SPEC_DIR="${PROJECT_SOURCE_DIR}")
 
+function(embed_resource resource_file_name source_file_name variable_name)
+
+    if(EXISTS "${source_file_name}")
+        if("${source_file_name}" IS_NEWER_THAN "${resource_file_name}")
+            return()
+        endif()
+    endif()
+
+    file(READ "${resource_file_name}" hex_content HEX)
+
+    string(REPEAT "[0-9a-f]" 32 pattern)
+    string(REGEX REPLACE "(${pattern})" "\\1\n" content "${hex_content}")
+
+    string(REGEX REPLACE "([0-9a-f][0-9a-f])" "0x\\1, " content "${content}")
+
+    string(REGEX REPLACE ", $" "" content "${content}")
+
+    set(array_definition "static const unsigned char ${variable_name}[] =\n{\n${content}\n};")
+
+    set(source "// Auto generated file.\n${array_definition}\n")
+
+    file(WRITE "${source_file_name}" "${source}")
+
+endfunction()
+
+embed_resource("${PROJECT_SOURCE_DIR}/linear-solver-spec.json" "${PROJECT_SOURCE_DIR}/src/polysolve/autogen/linear-solver-spec.cpp" "LINEAR_SOLVER_SPEC")
+embed_resource("${PROJECT_SOURCE_DIR}/nonlinear-solver-spec.json" "${PROJECT_SOURCE_DIR}/src/polysolve/autogen/nonlinear-solver-spec.cpp" "NONLINEAR_SOLVER_SPEC")
+
 
 ################################################################################
 # Dependencies
diff --git a/src/polysolve/linear/Solver.cpp b/src/polysolve/linear/Solver.cpp
index e7c0c259..16ca06ae 100644
--- a/src/polysolve/linear/Solver.cpp
+++ b/src/polysolve/linear/Solver.cpp
@@ -10,6 +10,8 @@
 
 #include <fstream>
 
+#include <polysolve/autogen/linear-solver-spec.cpp>
+
 // -----------------------------------------------------------------------------
 // 
 // Subsequent macros assume a single template parameter and SparseQR fails due to requiring 2 parameters. this is because the OrderingType is not filled in.
@@ -137,17 +139,10 @@ namespace polysolve::linear
     {
         json params = params_in; // mutable copy
 
-        json rules;
         jse::JSE jse;
 
         jse.strict = strict_validation;
-        const std::string input_spec = POLYSOLVE_LINEAR_SPEC;
-        std::ifstream file(input_spec);
-
-        if (file.is_open())
-            file >> rules;
-        else
-            log_and_throw_error(logger, "unable to open {} rules", input_spec);
+        json rules = json::parse(LINEAR_SOLVER_SPEC);
 
         apply_default_solver(rules);
         select_valid_solver(params, logger);
diff --git a/src/polysolve/nonlinear/BoxConstraintSolver.cpp b/src/polysolve/nonlinear/BoxConstraintSolver.cpp
index 707bb7d7..3cb46c8f 100644
--- a/src/polysolve/nonlinear/BoxConstraintSolver.cpp
+++ b/src/polysolve/nonlinear/BoxConstraintSolver.cpp
@@ -8,6 +8,8 @@
 
 #include <fstream>
 
+#include <polysolve/autogen/nonlinear-solver-spec.cpp>
+
 namespace polysolve::nonlinear
 {
 
@@ -21,18 +23,10 @@ namespace polysolve::nonlinear
     {
         json solver_params = solver_params_in; // mutable copy
 
-        json rules;
         jse::JSE jse;
 
         jse.strict = strict_validation;
-        const std::string input_spec = POLYSOLVE_NON_LINEAR_SPEC;
-        std::ifstream file(input_spec);
-
-        if (file.is_open())
-            file >> rules;
-        else
-            log_and_throw_error(logger, "unable to open {} rules", input_spec);
-
+        json rules = json::parse(NONLINEAR_SOLVER_SPEC);
         const bool valid_input = jse.verify_json(solver_params, rules);
 
         if (!valid_input)
diff --git a/src/polysolve/nonlinear/Solver.cpp b/src/polysolve/nonlinear/Solver.cpp
index 1b98faa1..fc6706be 100644
--- a/src/polysolve/nonlinear/Solver.cpp
+++ b/src/polysolve/nonlinear/Solver.cpp
@@ -26,6 +26,8 @@
 #include <iomanip>
 #include <fstream>
 
+#include <polysolve/autogen/nonlinear-solver-spec.cpp>
+
 namespace polysolve::nonlinear
 {
     namespace
@@ -121,18 +123,10 @@ namespace polysolve::nonlinear
     {
         json solver_params = solver_params_in; // mutable copy
 
-        json rules;
         jse::JSE jse;
 
         jse.strict = strict_validation;
-        const std::string input_spec = POLYSOLVE_NON_LINEAR_SPEC;
-        std::ifstream file(input_spec);
-
-        if (file.is_open())
-            file >> rules;
-        else
-            log_and_throw_error(logger, "unable to open {} rules", input_spec);
-
+        json rules = json::parse(NONLINEAR_SOLVER_SPEC);
         const bool valid_input = jse.verify_json(solver_params, rules);
 
         if (!valid_input)