The editor core is written in a reasonable amount of clean (your mileage may vary), modern and legacy free C code enabling it to run in resource constrained env

The editor core is written in a reasonable amount of clean (your mileage may vary), modern and legacy free C code enabling it to run in resource constrained environments. The implementation should be easy to hack on and encourage experimentation (e.g. native built in support for multiple cursors). There also exists a Lua API for in process extensions.