diff --git a/BUILDING.md b/BUILDING.md
index 565e23f..7d27250 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -2,4 +2,12 @@
 
 Not recommended. Windows sucks!
 
-`cmake .. -DCMAKE_BUILD_TYPE=Debug -G Ninja --preset windows-msvc-x64`
\ No newline at end of file
+`cmake .. -DCMAKE_BUILD_TYPE=Debug -G Ninja --preset windows-msvc-x64`
+
+# Linux Builds
+
+Install dependencies:
+
+`sudo apt install -y libsfml-dev libudev-dev libopenal-dev libvorbis-dev libflac-dev libxrandr-dev libxcursor-dev libfreetype-dev`
+
+And maybe also libfreetype6 and libfreetype6-dev, not sure...
diff --git a/include/app_finder.cpp b/include/app_finder.cpp
index 883059b..55ce5e4 100644
--- a/include/app_finder.cpp
+++ b/include/app_finder.cpp
@@ -184,9 +184,9 @@ std::optional<std::string> aa::get_focused_minecraft()
 #include <cassert>
 #include <sys/sysctl.h>
 
-inline ApplicationInfo aa::get_focused_application() { return osx::get_current_application(); }
+ApplicationInfo aa::get_focused_application() { return osx::get_current_application(); }
 
-inline std::optional<std::string> aa::get_focused_minecraft()
+std::optional<std::string> aa::get_focused_minecraft()
 {
     const auto& logger = get_logger("get_focused_minecraft");
 
@@ -373,6 +373,21 @@ inline std::optional<std::string> aa::get_focused_minecraft()
 
 #elif __linux__
 // Linux specific code for getting the current application details.
+ApplicationInfo aa::get_focused_application() { 
+    ApplicationInfo ret{};
+    ret.name = "UNIMPLEMENTED";
+    ret.exec = "UNIMPLEMENTED";
+    ret.pid  = 0;
+    return ret;
+}
+
+std::optional<std::string> aa::get_focused_minecraft()
+{
+    const auto& logger = get_logger("get_focused_minecraft");
+
+    const auto s = get_focused_application();
+    return {};
+}
 #else
 #error "Unsupported OS? D:"
 #endif
diff --git a/include/logging.hpp b/include/logging.hpp
index 16ec197..15d3e78 100644
--- a/include/logging.hpp
+++ b/include/logging.hpp
@@ -12,6 +12,7 @@
 #include <iostream>
 #include <optional>
 #include <sstream>
+#include <memory>
 
 namespace aa
 {
@@ -208,4 +209,4 @@ void error(Ts&&... ts)
     get_logger("root").error(std::forward<Ts>(ts)...);
 }
 } // namespace log
-} // namespace aa
\ No newline at end of file
+} // namespace aa