When creating a Studio, there are situations where it would be useful to provide an argument/ variable input. The motivating example here is to provide a path to an input file for Studios that don't have capabilities to browse buckets via Fusion as is possible for e.g. RStudio. For example, Studios containers built for cellxgene, Shiny apps would likely require input data specified at Studio build time, which as things stand would require hard-coding paths into the container or bundling data into the container itself.