diff --git a/build-all b/build-all
index fc565d9..cdb296f 100755
--- a/build-all
+++ b/build-all
@@ -52,7 +52,7 @@ build() { : \
  && echo build   cosmo-python        \
  && echo build   cosmo-quickjs       \
  && echo build   cosmo-sqlite        \
- && echo build   cosmo-unbourne      \
+ && build   cosmo-unbourne      \
 `# phase 5` \
  && build   cosmo-kuroko        \
  && build   cosmo-muon          \
diff --git a/cosmo-unbourne/Dockerfile b/cosmo-unbourne/Dockerfile
new file mode 100644
index 0000000..bcdd577
--- /dev/null
+++ b/cosmo-unbourne/Dockerfile
@@ -0,0 +1,12 @@
+FROM cosmo-bootstrap AS builder
+RUN --mount=type=tmpfs,target=/tmp : \
+ && . ./env \
+ && ./expand ./makeit e//unbourne.com \
+ && ./expand cp -t /usr/bin e//unbourne.com e//unbourne.com.dbg \
+;
+
+FROM scratch AS runner
+COPY --chmod=0755 --from=localhost/notwa-util /nu/busybox /bin/busybox
+COPY --chmod=0755 --from=builder /cosmopolitan/build/bootstrap/ape.elf /bin/ape
+COPY --chmod=0755 --from=builder /usr/bin/unbourne.com /usr/bin/unbourne.com.dbg /bin/
+ENTRYPOINT ["/bin/ape", "/bin/unbourne.com"]