The official Crystal snap is available

During the Snapcraft Summit Crystal team released the official snap package of the Crystal language

https://snapcraft.io/crystal

On Ubuntu 16.04 or later, you can install the Crystal snap with the following command:

sudo snap install crystal --classic

Snap uses the "channel" feature to release multiple Crystal series concurrently. For example, without specifying a channel, currently Crystal 0.29.0 will be installed. But if you want to install 0.30.0-dev, specify the latest/edge channel as follows:

sudo snap install crystal --edge --classic

Dead simple HTML form builder with built-in support for many popular UI libraries such as Bootstrap

https://github.com/westonganger/form_builder.cr

Dead simple HTML form builder for Crystal with built-in support for many popular UI libraries such as Bootstrap. Works well with your favourite Crystal web framework such as Kemal, Amber, or Lucky.

form_html_str = FormBuilder.form(theme: :bootstrap_4_vertical, action: "/products", method: :post, form_html: {style: "margin-top: 20px;", "data-foo" => "bar"}) do |f|
  f << f.field(name: "name", type: :text, label: "Name")
  f << f.field(name: "sku", type: :text, label: "SKU")
  f << "<strong>Hello World</strong>"
end