Yes. From Mark Hamburg's intro to _Lua Programming Gems_, pg. xii: "...Large portions of Lightroom ended up getting written in Lua including the object-relati

Yes. From Mark Hamburg's intro to _Lua Programming Gems_, pg. xii: "...Large portions of Lightroom ended up getting written in Lua including the object-relational mapping layer for the database and the layout system for views. [...] As a result, we had an application that was smaller by far than some of its competitors, easy to change, largely cross-platform in its implementation, and suffered essentially no compile-link cycle. [...] Lua is both very expressive compared to most native languages and sufficiently efficient that you can let it do a lot more of the work than one might be tempted to do in other scripting languages."