add mina for deploying capability

Gemfile

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+source 'https://rubygems.org'
+
+ruby '3.0.4'
+
+group :development, :test do
+  gem 'mina'
+  gem 'mina-systemd'
+end

Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    mina (1.0.7)
+      open4 (~> 1.3.4)
+      rake
+    mina-systemd (0.1.1)
+      mina (~> 1.0.0)
+    open4 (1.3.4)
+    rake (13.0.6)
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  mina
+  mina-systemd
+
+RUBY VERSION
+   ruby 3.0.4p208
+
+BUNDLED WITH
+   2.2.33

config/deploy.rb

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+require 'mina/git'
+require 'mina/systemd'
+#
+# the deploy tasks are listed here for some reason, so need to require it even though this project is not rails
+require 'mina/rails'
+# require 'mina/rbenv'  # for rbenv support. (https://rbenv.org)
+# require 'mina/rvm'    # for rvm support. (https://rvm.io)
+
+# Basic settings:
+#   domain       - The hostname to SSH to.
+#   deploy_to    - Path to deploy into.
+#   repository   - Git repo to clone from. (needed by mina/git)
+#   branch       - Branch name to deploy. (needed by mina/git)
+
+set :application_name, 'xens'
+set :domain, '127.0.0.1'
+set :deploy_to, '/var/www/xens'
+set :repository, 'https://github.com/snex/xens.git'
+set :branch, 'master'
+
+# Optional settings:
+#   set :user, 'foobar'          # Username in the server to SSH to.
+#   set :port, '30000'           # SSH port number.
+#   set :forward_agent, true     # SSH forward_agent.
+
+# Shared dirs and files will be symlinked into the app-folder by the 'deploy:link_shared_paths' step.
+# Some plugins already add folders to shared_dirs like `mina/rails` add `public/assets`, `vendor/bundle` and many more
+# run `mina -d` to see all folders and files already included in `shared_dirs` and `shared_files`
+# set :shared_dirs, fetch(:shared_dirs, []).push('public/assets')
+# set :shared_files, fetch(:shared_files, []).push('config/database.yml', 'config/secrets.yml')
+
+# This task is the environment that is loaded for all remote run commands, such as
+# `mina deploy` or `mina rake`.
+task :remote_environment do
+  # If you're using rbenv, use this to load the rbenv environment.
+  # Be sure to commit your .ruby-version or .rbenv-version to your repository.
+  # invoke :'rbenv:load'
+
+  # For those using RVM, use this to load an RVM version@gemset.
+  # invoke :'rvm:use', 'ruby-2.5.3@default'
+end
+
+# Put any custom commands you need to run at setup
+# All paths in `shared_dirs` and `shared_paths` will be created on their own.
+task :setup do
+  # command %{rbenv install 2.5.3 --skip-existing}
+  # command %{rvm install ruby-2.5.3}
+  # command %{gem install bundler}
+end
+
+desc "Deploys the current version to the server."
+task :deploy do
+  # uncomment this line to make sure you pushed your local branch to the remote origin
+  # invoke :'git:ensure_pushed'
+  deploy do
+    # Put things that will set up an empty directory into a fully set-up
+    # instance of your project.
+    invoke :'git:clone'
+    command 'cargo build -r'
+    invoke :'deploy:cleanup'
+
+    on :launch do
+      invoke :'systemctl:restart', 'xens'
+    end
+  end
+
+  # you can use `run :local` to run tasks on local machine before of after the deploy scripts
+  # run(:local){ say 'done' }
+end
+
+# For help in making your deploy script, see the Mina documentation:
+#
+#  - https://github.com/mina-deploy/mina/tree/master/docs