diff --git a/.gitignore b/.gitignore
index 7bd810d..b8fd851 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+/bin
+/lib/*
 *.mp4
 *.part
 /.bundle/
diff --git a/Gemfile b/Gemfile
deleted file mode 100644
index c8aabc5..0000000
--- a/Gemfile
+++ /dev/null
@@ -1,9 +0,0 @@
-# frozen_string_literal: true
-
-source "https://rubygems.org"
-
-# git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
-
-# Specify your gem's dependencies in fosdem.gemspec
-gemspec
-
diff --git a/Gemfile.lock b/Gemfile.lock
deleted file mode 100644
index 9ba4d9f..0000000
--- a/Gemfile.lock
+++ /dev/null
@@ -1,77 +0,0 @@
-PATH
-  remote: .
-  specs:
-    fosdem-recorder (0.1.0)
-      colorize (~> 0.8.1)
-      mechanize (~> 2.7)
-      thor (~> 1.1)
-
-GEM
-  remote: https://rubygems.org/
-  specs:
-    ast (2.4.2)
-    colorize (0.8.1)
-    connection_pool (2.2.3)
-    domain_name (0.5.20190701)
-      unf (>= 0.0.5, < 1.0.0)
-    http-cookie (1.0.3)
-      domain_name (~> 0.5)
-    mechanize (2.7.7)
-      domain_name (~> 0.5, >= 0.5.1)
-      http-cookie (~> 1.0)
-      mime-types (>= 1.17.2)
-      net-http-digest_auth (~> 1.1, >= 1.1.1)
-      net-http-persistent (>= 2.5.2)
-      nokogiri (~> 1.6)
-      ntlm-http (~> 0.1, >= 0.1.1)
-      webrick (~> 1.7)
-      webrobots (>= 0.0.9, < 0.2)
-    mime-types (3.3.1)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2020.1104)
-    mini_portile2 (2.5.0)
-    net-http-digest_auth (1.4.1)
-    net-http-persistent (4.0.1)
-      connection_pool (~> 2.2)
-    nokogiri (1.11.1)
-      mini_portile2 (~> 2.5.0)
-      racc (~> 1.4)
-    ntlm-http (0.1.1)
-    parallel (1.20.1)
-    parser (3.0.0.0)
-      ast (~> 2.4.1)
-    racc (1.5.2)
-    rainbow (3.0.0)
-    rake (13.0.3)
-    regexp_parser (2.0.3)
-    rexml (3.2.4)
-    rubocop (1.9.1)
-      parallel (~> 1.10)
-      parser (>= 3.0.0.0)
-      rainbow (>= 2.2.2, < 4.0)
-      regexp_parser (>= 1.8, < 3.0)
-      rexml
-      rubocop-ast (>= 1.2.0, < 2.0)
-      ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.4.1)
-      parser (>= 2.7.1.5)
-    ruby-progressbar (1.11.0)
-    thor (1.1.0)
-    unf (0.1.4)
-      unf_ext
-    unf_ext (0.0.7.7)
-    unicode-display_width (2.0.0)
-    webrick (1.7.0)
-    webrobots (0.1.2)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  fosdem-recorder!
-  rake (~> 13.0)
-  rubocop (~> 1.7)
-
-BUNDLED WITH
-   2.2.6
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..75d2900
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,10 @@
+all: build
+
+build: bin/fosdem-recorder
+
+bin/fosdem-recorder: $(wildcard src/*.cr)
+	shards build
+
+clean:
+	rm -f bin/fosdem-recorder
+
diff --git a/Rakefile b/Rakefile
deleted file mode 100644
index 1924143..0000000
--- a/Rakefile
+++ /dev/null
@@ -1,8 +0,0 @@
-# frozen_string_literal: true
-
-require "bundler/gem_tasks"
-require "rubocop/rake_task"
-
-RuboCop::RakeTask.new
-
-task default: :rubocop
diff --git a/bin/console b/bin/console
deleted file mode 100755
index a7b5515..0000000
--- a/bin/console
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/env ruby
-# frozen_string_literal: true
-
-require "bundler/setup"
-require "fosdem"
-
-# You can add fixtures and/or initialization code here to make experimenting
-# with your gem easier. You can also use a different console, if you like.
-
-# (If you use this, don't forget to add pry to your Gemfile!)
-# require "pry"
-# Pry.start
-
-require "irb"
-IRB.start(__FILE__)
diff --git a/bin/setup b/bin/setup
deleted file mode 100755
index dce67d8..0000000
--- a/bin/setup
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-IFS=$'\n\t'
-set -vx
-
-bundle install
-
-# Do any other automated setup that you need to do here
diff --git a/exe/fosdem_recorder b/exe/fosdem_recorder
deleted file mode 100755
index 1172b97..0000000
--- a/exe/fosdem_recorder
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/usr/bin/env ruby
-# frozen_string_literal: true
-
-require 'mechanize'
-require 'time'
-require 'colorize'
-require 'thor'
-
-require 'fosdem_recorder/cli'
-
-FosdemRecorder::Cli.start(ARGV)
diff --git a/fosdem_recorder.gemspec b/fosdem_recorder.gemspec
deleted file mode 100644
index ee3d8e3..0000000
--- a/fosdem_recorder.gemspec
+++ /dev/null
@@ -1,40 +0,0 @@
-# frozen_string_literal: true
-
-require_relative 'lib/fosdem_recorder/version'
-
-Gem::Specification.new do |spec|
-  spec.name          = 'fosdem-recorder'
-  spec.version       = FosdemRecorder::VERSION
-  spec.authors       = ['Glenn Y. Rolland']
-  spec.email         = ['glenux@glenux.net']
-
-  spec.summary       = 'Simple FOSDEM conferences recorder'
-  spec.description   = 'Simple FOSDEM conferences recorder'
-  spec.homepage      = 'https://github.com/glenux/fosdem-recorder'
-  spec.required_ruby_version = Gem::Requirement.new('>= 2.4.0')
-
-  # spec.metadata["allowed_push_host"] = "TODO: Set to 'http://mygemserver.com'"
-  # spec.metadata["homepage_uri"] = spec.homepage
-  spec.metadata["source_code_uri"] = 'https://github.com/glenux/fosdem-recorder'
-  # spec.metadata["changelog_uri"] = "TODO: Put your gem's CHANGELOG.md URL here."
-
-  # Specify which files should be added to the gem when it is released.
-  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
-  spec.files = Dir.chdir(File.expand_path(__dir__)) do
-    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{\A(?:test|spec|features)/}) }
-  end
-  spec.bindir        = 'exe'
-  spec.executables   = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
-  spec.require_paths = ['lib']
-
-  # Uncomment to register a new dependency of your gem
-  spec.add_dependency 'thor', '~> 1.1'
-  spec.add_dependency 'mechanize', '~> 2.7'
-  spec.add_dependency 'colorize', '~> 0.8.1'
-  spec.add_development_dependency 'rake', '~> 13.0'
-  spec.add_development_dependency 'rubocop', '~> 1.7'
-
-  # For more information and examples about making a new gem, checkout our
-  # guide at: https://bundler.io/guides/creating_gem.html
-end
-
diff --git a/lib/fosdem_recorder/cli.rb b/lib/fosdem_recorder/cli.rb
deleted file mode 100755
index dbac748..0000000
--- a/lib/fosdem_recorder/cli.rb
+++ /dev/null
@@ -1,106 +0,0 @@
-# frozen_string_literal: true
-
-# Cli part of FosdemRecorder
-module FosdemRecorder
-  # Fosdem Cli - Download and cut streams video
-  class Cli < Thor
-    desc 'info URL', 'Get information about URL'
-    def info(url)
-      meta = _get_meta(url)
-      puts meta[:title].green
-      puts "* event start  = #{meta[:event_start]}"
-      puts "* event stop   = #{meta[:event_stop]}"
-      puts "* event length = #{meta[:duration_str]}"
-      puts "* stream url   = #{meta[:stream_url]}"
-    end
-
-    desc 'download URL', 'Download conference described at URL'
-    def download(url)
-      meta = _get_meta(url)
-
-      localtime = meta[:event_start].localtime
-      timeformat = format(
-        '%<hours>02d:%<minutes>02d %<year>d-%<month>02d-%<day>02d',
-        hours: localtime.hour,
-        minutes: localtime.min,
-        year: localtime.year,
-        month: localtime.month,
-        day: localtime.day
-      )
-      cmd = "echo ffmpeg -i #{meta[:stream_url]} -c copy -t #{meta[:duration_str]} \"#{meta[:title_sane]}.mp4\" | at #{timeformat}"
-      puts "Command: #{cmd}".yellow
-      system cmd
-    end
-
-    private
-
-    def _validate_url(url)
-      return if url =~ %r{^https://fosdem.org/\d+/schedule/event/.*}
-
-      warn 'ERROR: not a fosdem stream. URL must start with https://fosdem.org/...'
-      exit 1
-    end
-
-    def _get_meta(url)
-      puts "Loading data from #{url}".yellow
-      mechanize = Mechanize.new
-      page = mechanize.get(url)
-
-      title = page.title
-      title_sane =
-        title
-        .gsub(/[^a-zA-Z0-9]/, '-')
-        .gsub(/--*/, '-')
-        .gsub(/-$/, '')
-        .gsub(/^-/, '')
-
-      play_start_str =
-        page
-        .at('.side-box .icon-play')
-        .parent
-        .at('.value-title')
-        .attr('title')
-        .strip
-
-      play_start = Time.parse(play_start_str)
-
-      play_stop_str =
-        page
-        .at('.side-box .icon-stop')
-        .parent
-        .at('.value-title')
-        .attr('title')
-        .strip
-
-      play_stop = Time.parse(play_stop_str)
-
-      duration = (play_stop - play_start) / 3600
-      duration_h = duration.to_i
-      duration_m = ((duration - duration_h) * 60).to_i
-      duration_str = format('%<hours>02d:%<minutes>02d:00', hours: duration_h, minutes: duration_m)
-
-      stream_page =
-        page
-        .links
-        .select { |link| link.href =~ /live.fosdem.org/ }
-        .first
-        .href
-
-      stream_url =
-        stream_page
-        .gsub(%r{.*watch/}, 'https://stream.fosdem.org/')
-        .gsub(/$/, '.m3u8')
-
-      {
-        title: title,
-        title_sane: title_sane,
-        stream_url: stream_url,
-        event_start: play_start,
-        event_stop: play_stop,
-        event_start_str: play_start_str,
-        event_stop_str: play_stop_str,
-        duration_str: duration_str
-      }
-    end
-  end
-end
diff --git a/shard.lock b/shard.lock
new file mode 100644
index 0000000..a143357
--- /dev/null
+++ b/shard.lock
@@ -0,0 +1,10 @@
+version: 2.0
+shards:
+  lexbor:
+    git: https://github.com/kostya/lexbor.git
+    version: 3.0.2
+
+  mechanize:
+    git: https://github.com/kanezoh/mechanize.cr.git
+    version: 0.1.0+git.commit.be4d84592176d709df793f14589e6bb6e19a7f2a
+
diff --git a/shard.yml b/shard.yml
new file mode 100644
index 0000000..8ff6731
--- /dev/null
+++ b/shard.yml
@@ -0,0 +1,25 @@
+name: fosdem-recorder-cr
+version: 0.1.0
+
+authors:
+  - Glenn Y. Rolland <glenux@glenux.net>
+
+description: |
+  A naïve recorder for FOSDEM streams
+
+dependencies:
+  mechanize:
+    github: Kanezoh/mechanize.cr
+    commit: be4d845
+    # branch: master
+    # tag: "0.2.0"
+
+targets:
+  fosdem-recorder:
+    main: src/main.cr
+
+# development_dependencies:
+#   webmock:
+#     github: manastech/webmock.cr
+
+license: LGPL-3
diff --git a/src/cli.cr b/src/cli.cr
new file mode 100644
index 0000000..0be31c6
--- /dev/null
+++ b/src/cli.cr
@@ -0,0 +1,159 @@
+
+require "option_parser"
+
+# Cli part of FosdemRecorder
+module FosdemRecorder
+  # Fosdem Cli - Download and cut streams video
+  class Cli
+    enum Actions
+      Info
+      None
+    end
+
+    property action : Actions = Actions::None
+
+    def initialize(args)
+      if args
+        parse args
+      end
+    end
+
+    def self.start(args)
+      Cli.new(args)
+    end
+
+    private def info(url)
+      _validate_url(url)
+      meta = _get_meta(url)
+      puts meta[:title].colorize.fore(:green)
+      puts "* event start  = #{meta[:event_start]}"
+      puts "* event stop   = #{meta[:event_stop]}"
+      puts "* event length = #{meta[:duration_str]}"
+      puts "* stream url   = #{meta[:stream_url]}"
+    end
+
+    private def download(url)
+      _validate_url(url)
+      meta = _get_meta(url)
+
+      localtime = meta[:event_start].to_local
+      timeformat = localtime.to_s("%H:%M %Y-%m-%d")
+      cmd = "echo ffmpeg -i #{meta[:stream_url]} -c copy -t #{meta[:duration_str]} \"#{meta[:title_sane]}.mp4\" | at #{timeformat}"
+      puts "Command: #{cmd}".colorize.fore(:yellow)
+      system cmd
+    end
+
+    private def parse(args)
+      commands = [] of Proc(String, Nil)
+
+      OptionParser.parse(args) do |opts|
+        opts.banner = "Usage: fosdem-recorder [subcommand] [arguments]"
+
+        opts.on("info", "Get information about URL") do
+          commands << ->info(String)
+        end
+
+        opts.on("download", "Download conference described at URL") do
+          commands << ->download(String)
+        end
+
+        opts.on("-h", "--help", "Shows this help") do
+          puts opts
+          exit 0
+        end
+      end
+
+      commands.each do |proc|
+        targs = Tuple(String).from(args)
+        proc.call(*targs)
+      end
+    end
+
+    private def _validate_url(url)
+      return if url =~ %r{^https://fosdem.org/\d+/schedule/event/.*}
+
+      if url =~ %r{^https://fosdem.org/.*}
+        STDERR.puts "ERROR: not a schedule page. URL must contain .../schedule/event/..."
+        exit 1
+      end
+
+      STDERR.puts "ERROR: not a fosdem stream. URL must start with https://fosdem.org/..."
+      exit 1
+    end
+
+    private def _get_meta(url)
+      puts "Loading data from #{url}".colorize.fore(:yellow)
+      mechanize = Mechanize.new
+
+      begin
+        page = mechanize.get(url)
+      rescue ex : Socket::Addrinfo::Error
+        STDERR.puts "ERROR: #{ex.message}"
+        exit 1
+      end
+
+      # body_class = page.at('body').attr('class')
+      # if body_class != 'schedule-event'
+      #   STDERR.puts "ERROR: Not an event schedule page!"
+      #   exit 1
+      # end
+      # puts body_class
+
+      title = page.title
+      title_sane =
+        title
+        .gsub(/[^a-zA-Z0-9]/, "-")
+        .gsub(/--*/, "-")
+        .gsub(/-$/, "")
+        .gsub(/^-/, "")
+
+      play_start_str =
+        page
+        .css(".side-box .icon-play").first.parent
+        .try &.css(".value-title").first["title"].strip
+      play_start_str = "" if play_start_str.nil?
+
+      puts "PLAY_START = #{play_start_str}"
+      location = Time::Location.load("Europe/Brussels")
+      # play_start = Time.parse(play_start_str, "%H:%S", location)
+      play_start = Time.parse_rfc3339(play_start_str) #, location)
+
+      play_stop_str =
+        page
+        .css(".side-box .icon-stop").first.parent
+        .try &.css(".value-title").first["title"].strip
+      play_stop_str = "" if play_stop_str.nil?
+
+      # play_stop = Time.parse(play_stop_str, "%H:%S", location)
+      play_stop = Time.parse_rfc3339(play_stop_str)
+
+      duration = (play_stop - play_start).to_i / 3600
+      duration_h = duration.to_i
+      duration_m = ((duration - duration_h) * 60 + 1).to_i
+      duration_str = sprintf("%02d:%02d:00", { duration_h, duration_m })
+
+      stream_page =
+        page
+        .links
+        .select { |link| link.href =~ /live.fosdem.org/ }
+        .first
+        .href
+
+      stream_url =
+        stream_page
+        .gsub(%r{.*watch/}, "https://stream.fosdem.org/")
+        .gsub(/$/, ".m3u8")
+
+      {
+        title: title,
+        title_sane: title_sane,
+        stream_url: stream_url,
+        event_start: play_start,
+        event_stop: play_stop,
+        event_start_str: play_start_str,
+        event_stop_str: play_stop_str,
+        duration_str: duration_str
+      }
+    end
+  end
+end
diff --git a/src/main.cr b/src/main.cr
new file mode 100644
index 0000000..4950c6b
--- /dev/null
+++ b/src/main.cr
@@ -0,0 +1,10 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require "mechanize"
+require "time"
+require "colorize"
+
+require "./cli"
+
+FosdemRecorder::Cli.start(ARGV)
diff --git a/lib/fosdem_recorder.rb b/src/types.cr
similarity index 100%
rename from lib/fosdem_recorder.rb
rename to src/types.cr
diff --git a/lib/fosdem_recorder/version.rb b/src/version.cr
similarity index 100%
rename from lib/fosdem_recorder/version.rb
rename to src/version.cr