Why Software Freedom Important

For the Users

Free software gives its users power to control their computers, and respects its users' security and privacy.

For the Developers

Free software promotes innovation and collaboration, bringing more excellent products to the digital world.

For the Digital Society

Free software pushes the technology to advance, and maintains the society's justice.

Four Essential Freedoms of Software

Freedom 0

The freedom to run the program as you wish, for any purpose.

Freedom 1

The freedom to study how the program works and change it.

Freedom 2

The freedom to redistribute copies.

Freedom 3

The freedom to distribute copies of your modified versions to others.

Contact Information

Another Personal Website

Clearnet Service (tilde.club)
Tor Onion Hidden Service
I2P Hidden Service (czllfs.i2p)


Basic Contact Info

Email

czl92783719@autistici.org (Primary)
czl92783719@tilde.club (Secondary)
czl92783719@vern.cc (Secondary)
czl92783719@disroot.org (Fallback)
czl92783719@tutanota.com (Fallback)
czl92783719@gmail.com (Fallback)
czl92783719@fsfans.club (Deprecated, Click here to learn more)
OpenPGP (Since Feb 18, 2025, All emails send to me are required to be encrypted with OpenPGP. Click here to learn more. )


Phone

I don't endorse the use of carrier phone calls and SMS/MMS since it have privacy issues. Click here to learn more.


Internet Communications & Instant Messaging

Jabber/XMPP

czl92783719@autistici.org
Registration Guide


Matrix

Not recommended if you also use Jabber/XMPP. Click here to learn more.
@czl92783719:matrix.org (Primary, only for private, secure e2ee communications)
@czl92783719:mozilla.org (Secondary, mainly for public, unencrypted communications)
@czl92783719:vern.cc (Fallback)
@czl92783719:tchncs.de (Fallback)


SIP

sip:czl92783719@sip.linphone.org


Tox

Contact me via other methods to ask for my Tox ID.


Briar

Contact me via other methods to add me on Briar.


Session

Contact me via other methods to add me on Session.


SimpleX

Contact me via other methods to ask for my SimpleX profile link.


Delta Chat

rdi926suw@nine.testrun.org


Social Networks

Mastodon

@czl92783719@fosstodon.org


Pleroma (Also Mastodon Compatible)

@czl92783719@fe.disroot.org


Diaspora*

czl92783719@diaspora-fr.org