Goals include: * Query by both name or address * Optimize size(s) * Protect against nasty .svg files or other edge cases * Caching (with smart cache invalidations) * Also support cover images (not just avatar images) References to consider include: * https://github.com/ensdomains/ens-metadata-service * https://github.com/ensdomains/ens-avatar * https://enstate.rs/docs#tag/avatars--banners * https://ensdata.net/ * https://github.com/gskril/ens-api