feat(build): Add initial Nix-based build process

Adds a build script using ASDF's program-op to build an executable out
of the Gemma source code.

In addition a Nix derivation is provided that will both compile the
Elm source and place it in a folder, as well as create the executable.

Currently static file serving does not function as intended.

1 files changed, 1 insertions, 0 deletions

diff --git a/gemma.asd b/gemma.asd
index 1da8aa0b20c2..54e794a1eea3 100644
--- a/gemma.asd
+++ b/gemma.asd
@@ -21,6 +21,7 @@
                 :components
                 ((:file "gemma"))))
   :build-operation program-op
+  :output-files (program-op (c o) '("build/gemma"))
   :entry-point "gemma::entrypoint"
   :description "Gemma is a household task management system"
   :long-description