I use a really simple environment based only on BSD systems (I used a lot of FreeBSD in the past).
- Lenovo Thinkpad x260 RAM/16GB HDD/256GB*2
- OpenBSD-current and OpenBSD-release
- Emacs with erlang-mode and elixir-mode
- Erlang/Elixir
- tmux
- ssh
I use a really simple environment based only on BSD systems (I used a lot of FreeBSD in the past).