L4​G_​H​O​M​E

Sets the path to Lingo4G home directory, which contains Lingo4G binaries and global configuration. In most cases there is no need to explicitly set the L4​G_​H​O​M​E variable, the l4g launch scripts sets it automatically.

L4​G_​O​P​T​S

Sets the extra JVM options to pass when launching Lingo4G. The most common use-case for setting L4​G_​O​P​T​S is increasing the amount of memory Lingo4G can use.

On Windows:

SET L4G_OPTS=-Xmx16g

On Linux or Mac:

export L4G_OPTS=-Xmx16g

When not set explicitly, Lingo4G launch scripts sets L4​G_​O​P​T​S to -​Xmx4g.

J​A​V​A_​C​M​D

The Java executable to use to launch Lingo4G.