diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e8da6ae
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,39 @@
+[submodule "subprojects/SDL"]
+	path = subprojects/SDL
+	url = https://github.com/libsdl-org/SDL.git
+	branch = SDL2
+[submodule "subprojects/SDL_image"]
+	path = subprojects/SDL_image
+	url = https://github.com/libsdl-org/SDL_image.git
+	branch = SDL2
+[submodule "subprojects/SDL_ttf"]
+	path = subprojects/SDL_ttf
+	url = https://github.com/libsdl-org/SDL_ttf.git
+	branch = SDL2
+[submodule "subprojects/minIni"]
+	path = subprojects/minIni
+	url = https://github.com/compuphase/minIni.git
+[submodule "subprojects/bdd-for-c"]
+	path = subprojects/bdd-for-c
+	url = https://github.com/grassator/bdd-for-c.git
+[submodule "subprojects/portmidi"]
+	path = subprojects/portmidi
+	url = https://github.com/PortMidi/portmidi.git
+[submodule "subprojects/getopt-for-windows"]
+	path = subprojects/getopt-for-windows
+	url = https://github.com/Chunde/getopt-for-windows.git
+[submodule "subprojects/libwebsockets"]
+	path = subprojects/libwebsockets
+	url = https://github.com/warmcat/libwebsockets.git
+[submodule "subprojects/openssl"]
+	path = subprojects/openssl
+	url = https://github.com/openssl/openssl.git
+[submodule "subprojects/sqlite"]
+	path = subprojects/sqlite
+	url = https://github.com/sqlite/sqlite.git
+[submodule "subprojects/bdd-for-c-mocks"]
+	path = subprojects/bdd-for-c-mocks
+	url = https://code.modal.sh/TheoryOfNekomata/bdd-for-c-mocks.git
+[submodule "subprojects/alsa-lib"]
+	path = subprojects/alsa-lib
+	url = git://git.alsa-project.org/alsa-lib.git
diff --git a/subprojects/SDL b/subprojects/SDL
new file mode 160000
index 0000000..7b06007
--- /dev/null
+++ b/subprojects/SDL
@@ -0,0 +1 @@
+Subproject commit 7b0600726679c52f609ccce0e92314c7852c8aa5
diff --git a/subprojects/SDL_image b/subprojects/SDL_image
new file mode 160000
index 0000000..44354bc
--- /dev/null
+++ b/subprojects/SDL_image
@@ -0,0 +1 @@
+Subproject commit 44354bc1a5b472e1755761fb1405d768a69bbb74
diff --git a/subprojects/SDL_ttf b/subprojects/SDL_ttf
new file mode 160000
index 0000000..c643f52
--- /dev/null
+++ b/subprojects/SDL_ttf
@@ -0,0 +1 @@
+Subproject commit c643f520c22d3e6442cc7cda4026c9cd1e6e52ec
diff --git a/subprojects/alsa-lib b/subprojects/alsa-lib
new file mode 160000
index 0000000..44705e3
--- /dev/null
+++ b/subprojects/alsa-lib
@@ -0,0 +1 @@
+Subproject commit 44705e3a2050162c4f434d712d22bfe3f7fb5021
diff --git a/subprojects/bdd-for-c b/subprojects/bdd-for-c
new file mode 160000
index 0000000..aec2afa
--- /dev/null
+++ b/subprojects/bdd-for-c
@@ -0,0 +1 @@
+Subproject commit aec2afa6a1d801f88e1b16101038e69f89ded6c8
diff --git a/subprojects/bdd-for-c-mocks b/subprojects/bdd-for-c-mocks
new file mode 160000
index 0000000..ff1b18d
--- /dev/null
+++ b/subprojects/bdd-for-c-mocks
@@ -0,0 +1 @@
+Subproject commit ff1b18d8089e36cf76f78224f0e899f5e06db7e4
diff --git a/subprojects/getopt-for-windows b/subprojects/getopt-for-windows
new file mode 160000
index 0000000..76fe2df
--- /dev/null
+++ b/subprojects/getopt-for-windows
@@ -0,0 +1 @@
+Subproject commit 76fe2df86f84771775fd2f1a641a09adbce28df7
diff --git a/subprojects/libwebsockets b/subprojects/libwebsockets
new file mode 160000
index 0000000..e8eb7d6
--- /dev/null
+++ b/subprojects/libwebsockets
@@ -0,0 +1 @@
+Subproject commit e8eb7d6bd66dde2156dbcd37b0e9048ed4006320
diff --git a/subprojects/minIni b/subprojects/minIni
new file mode 160000
index 0000000..755f9a8
--- /dev/null
+++ b/subprojects/minIni
@@ -0,0 +1 @@
+Subproject commit 755f9a8b5c3b8d8ced9bd2d9173dd1d1cac8efc2
diff --git a/subprojects/openssl b/subprojects/openssl
new file mode 160000
index 0000000..d54e91d
--- /dev/null
+++ b/subprojects/openssl
@@ -0,0 +1 @@
+Subproject commit d54e91d3944304bca2bd4c74af52ccffc49c6126
diff --git a/subprojects/portmidi b/subprojects/portmidi
new file mode 160000
index 0000000..db77727
--- /dev/null
+++ b/subprojects/portmidi
@@ -0,0 +1 @@
+Subproject commit db77727e0f99948af730a3f613f6fe2e7b83620d
diff --git a/subprojects/sqlite b/subprojects/sqlite
new file mode 160000
index 0000000..e17cac1
--- /dev/null
+++ b/subprojects/sqlite
@@ -0,0 +1 @@
+Subproject commit e17cac189fb40f4b1ccca04e54bf8163de555ae3