Add Makefile and submodule

.gitmodules

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+[submodule "CBQN"]
+	path = CBQN
+	url = https://github.com/dzaima/CBQN.git

CBQN

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+Subproject commit 982a54d98a4d2a37f40d0cc711b0ad5e396613e3

Makefile

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+.PHONY: check-and-reinit-submodules all
+all: .check-and-reinit-submodules
+	@${MAKE} -C CBQN/ MAKEFLAGS=
+
+run: 2048.bqn
+	./CBQN/BQN 2048.bqn
+
+.check-and-reinit-submodules:
+	@if git submodule status | egrep -q '^[-]|^[+]' ; then \
+		echo "INFO: reinitializing git submodules"; \
+		git submodule update --init; \
+	fi

README.md

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+# A 2048 game made in [BQN](https://github.com/mlochbaum/BQN)
+
+## Controls
+Vim style movement keys
+
+- h: left
+- j: down
+- k: up
+- l: right
+- q: quit
+
+## Running
+
+If you already have BQN and you have it on your path just run `./soko.bqn`
+
+Otherwise:
+
+1. `make` to compile CBQN
+2. `make run` to run the game
+
+## License 
+
+This code is licensed as AGPLv3