diff --git a/hecl/driver/ToolCook.hpp b/hecl/driver/ToolCook.hpp
index 0d17d9b8c..928bd50f3 100644
--- a/hecl/driver/ToolCook.hpp
+++ b/hecl/driver/ToolCook.hpp
@@ -38,7 +38,7 @@ public:
             }
           }
           if (!m_spec)
-            LogModule.report(logvisor::Fatal, fmt("unable to find data spec '{}'"), specName);
+            LogModule.report(logvisor::Fatal, fmt(_SYS_STR("unable to find data spec '{}'")), specName);
           continue;
         } else if (arg.size() >= 2 && arg[0] == _SYS_STR('-') && arg[1] == _SYS_STR('-'))
           continue;
diff --git a/hecl/driver/ToolExtract.hpp b/hecl/driver/ToolExtract.hpp
index 1f16e93b3..eb3206e81 100644
--- a/hecl/driver/ToolExtract.hpp
+++ b/hecl/driver/ToolExtract.hpp
@@ -62,7 +62,7 @@ public:
       newProjRoot.makeDir();
       m_fallbackProj.reset(new hecl::Database::Project(newProjRoot));
       if (logvisor::ErrorCount > ErrorRef)
-        LogModule.report(logvisor::Fatal, fmt("unable to init project at '{}'"), rootDir);
+        LogModule.report(logvisor::Fatal, fmt(_SYS_STR("unable to init project at '{}'")), rootDir);
       LogModule.report(logvisor::Info, fmt(_SYS_STR("initialized project at '{}/.hecl'")), rootDir);
       m_useProj = m_fallbackProj.get();
     } else
diff --git a/hecl/driver/ToolPackage.hpp b/hecl/driver/ToolPackage.hpp
index 495b75896..d5c42329d 100644
--- a/hecl/driver/ToolPackage.hpp
+++ b/hecl/driver/ToolPackage.hpp
@@ -82,7 +82,7 @@ public:
             }
           }
           if (!m_spec)
-            LogModule.report(logvisor::Fatal, fmt("unable to find data spec '{}'"), specName);
+            LogModule.report(logvisor::Fatal, fmt(_SYS_STR("unable to find data spec '{}'")), specName);
           continue;
         } else if (arg.size() >= 2 && arg[0] == _SYS_STR('-') && arg[1] == _SYS_STR('-'))
           continue;
diff --git a/hecl/extern/athena b/hecl/extern/athena
index 0ada695c7..ffbd1a0bc 160000
--- a/hecl/extern/athena
+++ b/hecl/extern/athena
@@ -1 +1 @@
-Subproject commit 0ada695c7a9a774a233211fe73e86b0779c3073a
+Subproject commit ffbd1a0bcda633d324eb82cd55fa14dcb2f33401
diff --git a/hecl/extern/boo b/hecl/extern/boo
index ae5d7e513..af50bc0bc 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit ae5d7e51316d149e1f52ff715a7e72a5c6906db5
+Subproject commit af50bc0bc21855dbe2b49cb5b40fdde1f4a925f9
diff --git a/hecl/include/hecl/FourCC.hpp b/hecl/include/hecl/FourCC.hpp
index a407425f5..63cf98439 100644
--- a/hecl/include/hecl/FourCC.hpp
+++ b/hecl/include/hecl/FourCC.hpp
@@ -85,5 +85,7 @@ struct hash<hecl::FourCC> {
 };
 } // namespace std
 
-FMT_CUSTOM_FORMATTER(hecl::FourCC, fmt("{:.4s}"), obj.getChars())
-FMT_CUSTOM_FORMATTER(hecl::DNAFourCC, fmt("{:.4s}"), obj.getChars())
+FMT_CUSTOM_FORMATTER(hecl::FourCC, "{:c}{:c}{:c}{:c}",
+                     obj.getChars()[0], obj.getChars()[1], obj.getChars()[2], obj.getChars()[3])
+FMT_CUSTOM_FORMATTER(hecl::DNAFourCC, "{:c}{:c}{:c}{:c}",
+                     obj.getChars()[0], obj.getChars()[1], obj.getChars()[2], obj.getChars()[3])
diff --git a/hecl/include/hecl/hecl.hpp b/hecl/include/hecl/hecl.hpp
index 6d41c84fb..57d51c93a 100644
--- a/hecl/include/hecl/hecl.hpp
+++ b/hecl/include/hecl/hecl.hpp
@@ -577,7 +577,7 @@ public:
         return SystemString(beginIt, absPathForward.cend());
       }
     }
-    LogModule.report(logvisor::Fatal, fmt("unable to resolve '{}' as project relative '{}'"), absPath, m_projRoot);
+    LogModule.report(logvisor::Fatal, fmt(_SYS_STR("unable to resolve '{}' as project relative '{}'")), absPath, m_projRoot);
     return SystemString();
   }
 
@@ -1269,5 +1269,5 @@ struct hash<hecl::Hash> {
 };
 } // namespace std
 
-FMT_CUSTOM_FORMATTER(hecl::SystemUTF8Conv, fmt("{}"), obj.str())
-FMT_CUSTOM_FORMATTER(hecl::SystemStringConv, fmt("{}"), obj.sys_str())
\ No newline at end of file
+FMT_CUSTOM_FORMATTER(hecl::SystemUTF8Conv, "{}", obj.str())
+FMT_CUSTOM_FORMATTER(hecl::SystemStringConv, "{}", obj.sys_str())
diff --git a/hecl/lib/Blender/Connection.cpp b/hecl/lib/Blender/Connection.cpp
index 897e85c1e..b4ad59278 100644
--- a/hecl/lib/Blender/Connection.cpp
+++ b/hecl/lib/Blender/Connection.cpp
@@ -284,7 +284,7 @@ Connection::Connection(int verbosityLevel) {
 
       /* User-specified blender path */
 #if _WIN32
-    wchar_t BLENDER_BIN_BUF[2048];
+    std::wstring blenderBinBuf;
     const wchar_t* blenderBin = _wgetenv(L"BLENDER_BIN");
 #else
     const char* blenderBin = getenv("BLENDER_BIN");
@@ -307,18 +307,16 @@ Connection::Connection(int verbosityLevel) {
         /* No steam; try default */
         wchar_t progFiles[256];
         if (!GetEnvironmentVariableW(L"ProgramFiles", progFiles, 256))
-          BlenderLog.report(logvisor::Fatal, L"unable to determine 'Program Files' path");
-        _snwprintf(BLENDER_BIN_BUF, 2048, L"%s\\Blender Foundation\\Blender\\blender.exe", progFiles);
-        blenderBin = BLENDER_BIN_BUF;
+          BlenderLog.report(logvisor::Fatal, fmt(L"unable to determine 'Program Files' path"));
+        blenderBinBuf = fmt::format(fmt(L"{}\\Blender Foundation\\Blender\\blender.exe"), progFiles);
+        blenderBin = blenderBinBuf.c_str();
         if (!RegFileExists(blenderBin))
-          BlenderLog.report(logvisor::Fatal, L"unable to find blender.exe");
+          BlenderLog.report(logvisor::Fatal, fmt(L"unable to find blender.exe"));
       }
     }
 
-    wchar_t cmdLine[2048];
-    _snwprintf(cmdLine, 2048, L" --background -P \"%s\" -- %" PRIuPTR " %" PRIuPTR " %d \"%s\"",
-               blenderShellPath.c_str(), uintptr_t(writehandle), uintptr_t(readhandle), verbosityLevel,
-               blenderAddonPath.c_str());
+    std::wstring cmdLine = fmt::format(fmt(L" --background -P \"{}\" -- {} {} {} \"{}\""),
+      blenderShellPath, uintptr_t(writehandle), uintptr_t(readhandle), verbosityLevel, blenderAddonPath);
 
     STARTUPINFO sinfo = {sizeof(STARTUPINFO)};
     HANDLE nulHandle = CreateFileW(L"nul", GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, &sattrs, OPEN_EXISTING,
@@ -333,11 +331,12 @@ Connection::Connection(int verbosityLevel) {
       sinfo.hStdOutput = consoleOutWrite;
     }
 
-    if (!CreateProcessW(blenderBin, cmdLine, NULL, NULL, TRUE, NORMAL_PRIORITY_CLASS, NULL, NULL, &sinfo, &m_pinfo)) {
+    if (!CreateProcessW(blenderBin, const_cast<wchar_t*>(cmdLine.c_str()), NULL, NULL, TRUE,
+                        NORMAL_PRIORITY_CLASS, NULL, NULL, &sinfo, &m_pinfo)) {
       LPWSTR messageBuffer = nullptr;
       FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
                      GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPWSTR)&messageBuffer, 0, NULL);
-      BlenderLog.report(logvisor::Fatal, L"unable to launch blender from %s: %s", blenderBin, messageBuffer);
+      BlenderLog.report(logvisor::Fatal, fmt(L"unable to launch blender from {}: {}"), blenderBin, messageBuffer);
     }
 
     close(m_writepipe[0]);
@@ -359,7 +358,7 @@ Connection::Connection(int verbosityLevel) {
           if (err == ERROR_BROKEN_PIPE)
             break; // pipe done - normal exit path.
           else
-            BlenderLog.report(logvisor::Error, fmt("Error with ReadFile: %08X"), err); // Something bad happened.
+            BlenderLog.report(logvisor::Error, fmt("Error with ReadFile: {:08X}"), err); // Something bad happened.
         }
 
         // Display the character read on the screen.
@@ -461,11 +460,15 @@ Connection::Connection(int verbosityLevel) {
       BlenderLog.report(logvisor::Fatal, fmt("Unable to launch blender: {}"), lineBuf + 9);
     } else if (!strncmp(lineBuf, "NOBLENDER", 9)) {
       _closePipe();
+#if _WIN32
+      BlenderLog.report(logvisor::Fatal, fmt(_SYS_STR("Unable to find blender at '{}'")), blenderBin);
+#else
       if (blenderBin)
         BlenderLog.report(logvisor::Fatal, fmt(_SYS_STR("Unable to find blender at '{}' or '{}'")), blenderBin,
                           DEFAULT_BLENDER_BIN);
       else
         BlenderLog.report(logvisor::Fatal, fmt(_SYS_STR("Unable to find blender at '{}'")), DEFAULT_BLENDER_BIN);
+#endif
     } else if (!strcmp(lineBuf, "NOT280")) {
       _closePipe();
       BlenderLog.report(logvisor::Fatal, fmt(_SYS_STR("Installed blender version must be >= 2.80")));
diff --git a/hecl/lib/CMakeLists.txt b/hecl/lib/CMakeLists.txt
index 6e040e753..f6d253b24 100644
--- a/hecl/lib/CMakeLists.txt
+++ b/hecl/lib/CMakeLists.txt
@@ -87,8 +87,10 @@ target_atdna(hecl-light atdna_HMDLMeta_light.cpp ../include/hecl/HMDLMeta.hpp)
 target_atdna(hecl-light atdna_CVar_light.cpp ../include/hecl/CVar.hpp)
 
 add_library(hecl-compilers Compilers.cpp WideStringConvert.cpp)
-target_include_directories(hecl-compilers PUBLIC ../include)
-target_link_libraries(hecl-compilers PUBLIC boo athena-core logvisor)
+get_target_property(BOO_INCLUDES boo INTERFACE_INCLUDE_DIRECTORIES)
+target_include_directories(hecl-compilers PUBLIC ../include ${BOO_INCLUDES})
+target_link_libraries(hecl-compilers PUBLIC athena-core logvisor xxhash
+        glslang OSDependent OGLCompiler SPIRV glslang-default-resource-limits)
 
 if(COMMAND add_sanitizers)
   add_sanitizers(hecl-full)
diff --git a/hecl/lib/ClientProcess.cpp b/hecl/lib/ClientProcess.cpp
index 051c7b207..bdf539375 100644
--- a/hecl/lib/ClientProcess.cpp
+++ b/hecl/lib/ClientProcess.cpp
@@ -89,7 +89,8 @@ ClientProcess::Worker::Worker(ClientProcess& proc, int idx) : m_proc(proc), m_id
 void ClientProcess::Worker::proc() {
   ClientProcess::ThreadWorker.reset(this);
 
-  logvisor::RegisterThreadName(fmt::format(fmt("HECL Worker {}"), m_idx).c_str());
+  std::string thrName = fmt::format(fmt("HECL Worker {}"), m_idx);
+  logvisor::RegisterThreadName(thrName.c_str());
 
   std::unique_lock<std::mutex> lk(m_proc.m_mutex);
   while (m_proc.m_running) {
diff --git a/hecl/lib/Compilers.cpp b/hecl/lib/Compilers.cpp
index eb47087e4..1f29236eb 100644
--- a/hecl/lib/Compilers.cpp
+++ b/hecl/lib/Compilers.cpp
@@ -100,7 +100,7 @@ struct ShaderCompiler<PlatformType::D3D11> {
     if (FAILED(D3DCompilePROC(text.data(), text.size(), "Boo HLSL Source", nullptr, nullptr, "main",
                               D3DShaderTypes[int(S::Enum)], BOO_D3DCOMPILE_FLAG, 0, &blobOut, &errBlob))) {
       printf("%s\n", text.data());
-      Log.report(logvisor::Fatal, fmt("error compiling shader: %s"), errBlob->GetBufferPointer());
+      Log.report(logvisor::Fatal, fmt("error compiling shader: {}"), (char*)errBlob->GetBufferPointer());
       return {};
     }
     std::pair<StageBinaryData, size_t> ret(MakeStageBinaryData(blobOut->GetBufferSize()), blobOut->GetBufferSize());
diff --git a/hecl/lib/Project.cpp b/hecl/lib/Project.cpp
index 0eb788f67..9243c805e 100644
--- a/hecl/lib/Project.cpp
+++ b/hecl/lib/Project.cpp
@@ -219,7 +219,7 @@ const ProjectPath& Project::getProjectCookedPath(const DataSpecEntry& spec) cons
   for (const ProjectDataSpec& sp : m_compiledSpecs)
     if (&sp.spec == &spec)
       return sp.cookedPath;
-  LogModule.report(logvisor::Fatal, fmt("Unable to find spec '{}'"), spec.m_name);
+  LogModule.report(logvisor::Fatal, fmt(_SYS_STR("Unable to find spec '{}'")), spec.m_name);
   return m_cookedRoot;
 }
 
diff --git a/hecl/lib/hecl.cpp b/hecl/lib/hecl.cpp
index 39625ca1b..5122f53a0 100644
--- a/hecl/lib/hecl.cpp
+++ b/hecl/lib/hecl.cpp
@@ -747,7 +747,7 @@ int RunProcess(const SystemChar* path, const SystemChar* const args[]) {
     LPWSTR messageBuffer = nullptr;
     FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
                    GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPWSTR)&messageBuffer, 0, NULL);
-    LogModule.report(logvisor::Error, L"unable to launch process from %s: %s", path, messageBuffer);
+    LogModule.report(logvisor::Error, fmt(L"unable to launch process from {}: {}"), path, messageBuffer);
     LocalFree(messageBuffer);
 
     CloseHandle(nulHandle);
@@ -773,7 +773,7 @@ int RunProcess(const SystemChar* path, const SystemChar* const args[]) {
         if (err == ERROR_BROKEN_PIPE)
           break; // pipe done - normal exit path.
         else
-          LogModule.report(logvisor::Error, fmt("Error with ReadFile: %08X"), err); // Something bad happened.
+          LogModule.report(logvisor::Error, fmt("Error with ReadFile: {:08X}"), err); // Something bad happened.
       }
 
       // Display the character read on the screen.
diff --git a/hecl/shaderc/main.cpp b/hecl/shaderc/main.cpp
index a31cd9aaa..28e476757 100644
--- a/hecl/shaderc/main.cpp
+++ b/hecl/shaderc/main.cpp
@@ -85,7 +85,7 @@ int main(int argc, const hecl::SystemChar** argv)
         else
           c.addDefine(defineU8, "");
       } else {
-        Log.report(logvisor::Error, fmt("Unrecognized flag option '{:c}'"), argv[i][1]);
+        Log.report(logvisor::Error, fmt(_SYS_STR("Unrecognized flag option '{:c}'")), argv[i][1]);
         return 1;
       }
     } else {