```ruby
require 'formula'

class Ttygif < Formula
  homepage 'https://github.com/icholy/ttygif'
  url 'https://github.com/icholy/ttygif/archive/1.0.8.zip'
  sha1 'f8d0a56af11d3ae8e2d5e64a4f6aceccb8338414'

  depends_on 'imagemagick'
  depends_on 'ttyrec'

  def install
    system 'make'
    bin.install('ttygif')
    bin.install('concat_osx.sh')
  end
end
```

Update expected SHA1 for release 1.0.8
user
```ruby
require 'formula'

class Ttygif < Formula
  homepage 'https://github.com/icholy/ttygif'
  url 'https://github.com/icholy/ttygif/archive/1.0.8.zip'
  sha1 '00e76af8ac11d8522ff32d5c86cba07545bf54c6'

  depends_on 'imagemagick'
  depends_on 'ttyrec'

  def install
    system 'make'
    bin.install('ttygif')
    bin.install('concat_osx.sh')
  end
end
```
assistant