Update Dockerfile and add Maiko as submodule

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "maiko"]
+	path = maiko
+	url = https://github.com/Interlisp/maiko.git

Dockerfile

@@ -1,5 +1,16 @@
-FROM node:12-alpine
+FROM ubuntu:focal
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update
+RUN apt-get install -y build-essential clang libx11-dev tightvncserver xfce4 xfce4-goodies
+COPY . /build
+WORKDIR /build/maiko/bin
+RUN ./makeright x
+RUN mkdir /app
+RUN cp ../linux.x86_64/* /app
+COPY loadups/xfull35.sysout /app
+
+RUN adduser --disabled-password --gecos "" medley
+USER medley
 WORKDIR /app
-COPY lde* /usr/locsl/bin
-RUN 
-CMD lde -g 1000z800 -d host.internal full35.sysout
+ENTRYPOINT USER=medley Xvnc -geometry 1270x720 :0 & DISPLAY=:0 /app/ldex -g 1280x720 xfull35.sysout