Fix up pid1

Dockerfile

@@ -11,3 +11,4 @@ EXPOSE 6119
 
 ENTRYPOINT ["/usr/local/bin/pid1.bash"]
 COPY scripts/pid1.bash /usr/local/bin/
+CMD bash

Makefile

@@ -11,4 +11,4 @@ help: ## Show this message
 .PHONY: docker
 docker: ## Run shell with source code and deps inside Docker
 	scripts/docker.bash build . -t fast-sandbox --build-arg "UID=$(UID)"
-	scripts/docker.bash run -it --rm -v "$PWD" -p 6119:6119 fast-sandbox
+	scripts/docker.bash run -it --rm -v "$(PWD):/home/docker/src" -p 6119:6119 fast-sandbox

scripts/pid1.bash

@@ -7,4 +7,8 @@ export LANG=C.UTF-8
 export LC_ALL=C.UTF-8
 export SHELL="$(which bash)"
 
+if [[ -d src ]]; then
+    cd src
+fi
+
 exec "$@"