Plan9&#x27;s Acme text editor [1] was based on ideas from Oberon.<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Acme_%28text_editor%29" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Acme_%28text_editor%29</a><p>That&#x27;s my screenshot :)<p>Acme is available for Unix likes via plan9port [2] and for Windows via Acme-sac [3] (Inferno running with Acme instead of the window manager)<p>[2] <a href="https:&#x2F;&#x2F;swtch.com&#x2F;plan9port&#x2F;" rel="nofollow">https:&#x2F;&#x2F;swtch.com&#x2F;plan9port&#x2F;</a> but also see your distro&#x27;s package system, it might be in there already<p>[3] <a href="https:&#x2F;&#x2F;code.google.com&#x2F;p&#x2F;acme-sac&#x2F;" rel="nofollow">https:&#x2F;&#x2F;code.google.com&#x2F;p&#x2F;acme-sac&#x2F;</a>