<p dir="auto">There is no environment variable equivalent to <code class="notranslate">-J</code>/<code class="notranslate">--sysimage</code> option for specifying a custom image for Julia instance. I think supporting a variable like <code class="notranslate">JULIA_SYSIMAGE</code> can be quite useful when deploying Julia for custom environment, i.e. deploying in a Docker container with custom system image baked in.</p>
<p dir="auto">Currently, one would have to manually add an option every time or create a wrapper script to launch Julia with custom image, especially when replacing default system image is not an option (i.e. <a href="https://github.com/jupyterhub/repo2docker">repo2docker</a> does not allow root privileges for touching system image when using default Julia buildpak).</p>
<p dir="auto">Being able to specify this path with a variable such as <code class="notranslate">JULIA_SYSIMAGE=/tmp/sysimage.so</code> would be useful.</p>