diff --git a/Gemfile b/Gemfile
index 6f1e72e..0d91535 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,6 +9,7 @@ gem "json"
 # "game" library gem
 gem "cyberarm_engine"
 gem "sdl3-bindings"
+gem "gosu", '1.5.0' # temporary, manually built, stand-in for SDL3 supporting gosu
 
 # networking libs
 gem "async"
diff --git a/Gemfile.lock b/Gemfile.lock
index 059e6f2..e648aa1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,7 +36,8 @@ GEM
     fiber-local (1.1.0)
       fiber-storage
     fiber-storage (1.0.1)
-    gosu (1.4.6)
+    gosu (1.5.0-x86_64-linux)
+      ffi (~> 1.12)
     io-endpoint (0.18.0)
       openssl (>= 3.3.0)
     io-event (1.21.1)
@@ -78,6 +79,7 @@ DEPENDENCIES
   chunky_png
   cyberarm_engine
   digest-crc
+  gosu (= 1.5.0)
   ircparser
   json
   logger
@@ -99,7 +101,7 @@ CHECKSUMS
   fiber-annotation (0.2.0) sha256=7abfadf1d119f508867d4103bf231c0354d019cc39a5738945dec2edadaf6c03
   fiber-local (1.1.0) sha256=c885f94f210fb9b05737de65d511136ea602e00c5105953748aa0f8793489f06
   fiber-storage (1.0.1) sha256=f48e5b6d8b0be96dac486332b55cee82240057065dc761c1ea692b2e719240e1
-  gosu (1.4.6) sha256=80c7fa48cf61f4960ef067fdd1c000d98b4adc8e11faeaa486543d00908a5c15
+  gosu (1.5.0-x86_64-linux)
   io-endpoint (0.18.0) sha256=720d186bcd584e8ba490bfc91dab332cc3c5ffee848b5b03894555cb275151aa
   io-event (1.21.1) sha256=b3088f89ad67edf9be9fc2f48a5fae0790e92862487551eeb337b49098eb99e6
   io-stream (0.14.0) sha256=07d9b13ea2066ccbbc761fff8d69ad5a31e47561d31e02cc271f3ed9c1a8f1cd
diff --git a/w3d_hub_linux_launcher.rb b/w3d_hub_linux_launcher.rb
index b99e2aa..669db78 100644
--- a/w3d_hub_linux_launcher.rb
+++ b/w3d_hub_linux_launcher.rb
@@ -19,6 +19,9 @@ require "digest/crc"
 require "ircparser"
 require "zip"
 require "chunky_png"
+require "sdl3"
+
+require_relative "lib/gosu_ext"
 
 require_relative "lib/version"
 require_relative "lib/constants"
@@ -69,6 +72,13 @@ module W3DHubLauncher
   WORKER.connect
 end
 
+SDL.load_lib("SDL3")
+
 window = W3DHubLauncher::Window.new(width: 1280, height: 800, resizable: true)
 # window = W3DHubLauncher::Window.new(width: 1920, height: 1080, resizable: true)
+
+# Gosu.choose_file do |files|
+#   pp files
+# end
+
 window.show