## Machi developer environment prerequisites 1. Machi requires an 64-bit variant of UNIX: OS X, FreeBSD, Linux, or Solaris machine is a standard developer environment for C and C++ applications (64-bit versions). 2. You'll need the `git` source management utility. 3. You'll need the 64-bit Erlang/OTP 17 runtime environment. Please don't use earlier or later versions until we have a chance to fix the compilation warnings that versions R16B and 18 will trigger. Also, please verify that you are not using a 32-bit Erlang/OTP runtime package. For `git` and the Erlang runtime, please use your OS-specific package manager to install these. If your package manager doesn't have 64-bit Erlang/OTP version 17 available, then we recommend using the [precompiled packages available at Erlang Solutions](https://www.erlang-solutions.com/resources/download.html). Also, please verify that you have enough file descriptors available to your user processes. The output of `ulimit -n` should report at least 4,000 file descriptors available. If your limit is lower (a frequent problem for OS X users), please increase it to at least 4,000.