ADD previous work on dockerfile

Dockerfile

@@ -0,0 +1,18 @@
+FROM nimlang/nim as builder
+
+RUN apt update -qq && \
+    DEBIAN_FRONTEND="noninteractive" apt install -yq cmake curl make
+
+FROM builder
+ARG corecount=1
+COPY nim-codex .
+
+# TODO add a processor count variable argument
+# RUN make -j6 update
+# RUN make -j6 USE_SYSTEM_NIM=1 exec
+
+RUN make -j${corecount} update
+
+RUN make -j${corecount} USE_SYSTEM_NIM=1 exec
+
+ENTRYPOINT ["."]