One thing that I realized after a while in the mainframe community is that people are open to questions. If you have any questions, feel free to reach out to me and I’ll gladly answer them.

Email Address

My email address is listed below. Just send me an email and I’ll get back to you at my earliest convenience.

Please enable Javascript to see email.

You can also send encrypted emails using either or both of my OpenPGP public keys. Please include your own public key if you want any replies to be encrypted.

OpenPGP Keys

I currently have 2 separate OpenPGP keys, both of which are generated on FIPS 140-2 validated security keys.

You can also perform a Web Key Directory lookup on the email address above to get the two keys imported.

ActivityPub Server

I self-host a personal GoToSocial instance which allows connection to various ActivityPub-compliant app, which include Mastodon, Pleroma and Misskey. So, feel free to send me a toot and follow me!

Do note that GoToSocial is still in alpha, there might be bugs and missing features which I can’t interact with.

Snail Mail

Alternatively, snail mail is also an option. Do note that it may take a while for me to get back to you. Please include a return address for any replies.

Hartanto Ario Widjaya
152 Beach Road, #02-08
MPB 1904
Singapore 189721

Any views or opinions represented on this website are personal and does not represent those of individuals or organizations that I am associated with.