TL;DR: What I want to create is a space where I can articulate my views on trans and other non-cis people and our existence in a cisgender society.

Serena really helped me with this so go check out her page!

Who can be a trans-centrist?
Trans-centrism is open to any individuals who feel they would benefit from it, regardless of whether they personally identify as trans. While not all people who aren't trans are cis, I ask that people who are fully and completely cisgender check out [section not yet written].

What is trans-centrism?
Trans-centrism is centering trans people in your life. Understanding that cissiety has traditionally marginalized and maligned trans people, and choosing to buck that trend. Cissiety centers cis experience as default and even unquestionable. Trans-centrism does away with cis experience altogether.

How does one do trans-centrism?
Trans-centrism can be done in infinitely varied ways so long as they maintain the philosophy of centering trans experiences (and conversely, putting cis experiences out of one's mind). What I have done is cut contact with the majority of cis people in my life and hold the remainder under scrutiny.
After all, if a cis person is able to cut off a trans person after they come out, why should a trans person be unable to do the same? There may not be a decisive moment of "coming out as cis" that a trans person may use, but cis people don't always cut trans people off decisively either. It could be little things, like unwarranted scrutiny cis peers don't have to deal with, or just intentionally drifting out of touch. I've used the more vengeful side of trans-centrism, cis-out-of-mind-ism if you will, to give myself permission to treat cis people the way they treat trans people.

When is trans-centrism called for?
Trans-centrism is called for when you notice you value cis experiences over trans experiences. Due to living in a cis-centric society, this is always the case. Trans-centrism is a sort of tongue in cheek name, but to truly center trans people at all times is not only impossible, but ultimately undesirable. This is the only time I will use this phrase on this page, so read it now and castigate me if I ever utter it again. Reversing oppression is not the solution. There, I did it. What I mean to say is that to truly have a transgender equivalent to the cis-centrism inherent to cissiety, we would need to systemically oppress cis people the likes of which we ourselves suffer, and compound their suffering by forcing them to undergo distressing bodily changes to compound dysphoria. This is not only something I wouldn't wish on anyone, but would disproportionately harm intersex people (who are already subject to this medical abuse via intersexism), and people of colour (who are being subject to genocide right now, the most recent example being the forced hysterectomies performed by the United States' Immigration and Custom Enforcement).

Where can one do trans-centrism?
Trans-centrism can be done anywhere. In one's mind, in one's body, in one's friends, in one's enemies, in one's home, in one's school, at one's workplace, at one's place of worship. I actually got thinking about religion and how absurdly little there is about trans people, at least in my religion (Orthodox Christianity). I remember reading about a transgender man in Montenegro who was baptized by the Serbian Orthodox Church as a man, but when commenting on the same case, the Church dismissed "mindless gender ideology" as a sin. I think it's fascinating how cis people's cognitive dissonance works. I do try to keep it out of my mind, however. To me, specifically cisgender thoughts are only important insofar as they help me understand transphobia and transmisogyny.
Of course, I say specifically cisgender thoughts because it is important to me to value the opinions of cisgender people when not speaking about gender as intersecting with something else, or not speaking about gender at all.

Why should one do trans-centrism?
I cannot tell you why you should do trans-centrism, but I can talk about why I wrote all of this. I have grown tired of maintaining boundaries among cisgender people. Due to living in a cis-centric society, their experience is default and they do not even think to consider the transgender experience. I have grown tired of being an educational resource for people who have internet access and countless of lists of recommendations. Why should I hold cis people's hands as they navigate my experience? How can I meaningfully connect with someone if I must take a lecturing role on my life, and still be subject to their transphobia, their marginalization and disregard for my experience? I moved to minimize my contact with them. I did so out of fear and hatred, yes, but also love for my fellow trans people and the hope that they do not have to put up with that as well.
Rather than focusing on my rage at cis people, I spent the bulk of this page focusing on centering trans people in the hopes of creating, at the very least, enclaves where their experience is front, centre, and default, and where they do not have to worry about presenting to the cisgender voyeuristic respectability cop that lurks in all our minds.
I have made a few concessions to that imaginary person in this very site, no less, which is highly ironic. I speak of trans people not in the plural first person, which includes the reader, but in third person, which excludes the reader. I may let this error stand as proof that yes, we live in a cis-centric society where I cannot even center us on a site that is about centering us. I will henceforth strive to assume that the reader for all my work, no matter how unrelated, is also transgender, or otherwise not-cisgender.

Practical Considerations

There are no trans people where I live...
This is the most common and obvious obstacle to trans-centrism. There are, however, ways to centre trans people without necessarily interacting with any in person. One way I do that is by avoiding Discord servers that are predominantly made up of cis people (in practice, have any cis people at all) unless I have a very good reason to (such as a close non-cis friend of mine running one). There's other ways I do this, too. I am doing distance learning (as is everyone I know, hello from 2020) and I am pretty much barred from communicating with professors and TAs on account of deadnames and dysphoria and such, so I either ask a transgender person online or I see if somebody's already asked a similar question online. I am thankful to know trans people who study similar fields to mine, and I highly recommend you look up trans communities online for a topic of interest and chatting.

I don't want to hang out with the trans people I know...
Yeah, sometimes it's like that. Just pretend there's no trans people near where you live and keep going.