multienv – Multiple environments using a "key=value" syntax

The pack­age pro­vides a mul­ti­env en­vi­ron­ment which per­mits easy ad­di­tion of mul­ti­ple en­vi­ron­ments us­ing a key=value syn­tax. Macros to de­fine en­vi­ron­ments us­ing this syn­tax are also pro­vided.