I want to dedicate a place for 'information'. I am biased because I spent most of my life online where information is most pronounced, yet it is fundamental on every level of existence of all animals including humans.
I like information, information is the perfection of subjectivity of all natural things perceived by mind. It birthed human ability for farming, erecting houses, cooking, speech, cooperation, technology and all other things. Over the years it brought me pride and glory like nothing else. It deserves a place dedicated to it.

I would want to build a jinja completely fusing ancient things and the most modern things.
I would want to keep most of traditional things, but I would change some too to best fit deified 'information'.

1. I would keep regular temizu, but also would set up metal bars next to it to touch and cleanse yourself of static electricity as to not damage the deity's body. I find it cute.
2. The deity's body would be a huge telecommunication relay put on top of the temple. A radio transmitter of immense capacity as a symbol of passing information around. It would be my relay to pass around TOR, I2P and any other hidden network and anything that can be transferred at all. It would be a free wi-fi place, an open VPN with no password, no terms of service, no logs and no filtering (I wonder how long it would last). I would hang posters around how to connect to it from homes. As natural, as untouched and as easy to access as possible.
3. In the middle of the main floor of the temple would stand a sole radio. You could turn it on, and listen to the deity's body. Listen how lively the deity works passing information around and marvel at its beauty.
4. Donation box would look pretty regular, but it would be built so that the tossed coin passes through a narrowing tunnel which detects the coin's presence. Exactly like in soda machines on the street. When it detects a coin it would play you a song on tesla coils and give you titles of masterpieces to read for personal benefit and tutorials on how to participate in information spreading for common benefit.
5. The bells that you pull to pray would possibly be power generators and they would produce electric arcs and they would substitute the bell sound with similar electric sounds. They probably would power an electric arc above the radio from 4th paragraph so that you can look at something.
6. Talismans would probably be also a decorated cards that give you a bunch of links and resources with a lot of knowledge. Information.
7. There would be a button somewhere to talk to an AI and ask it anything. I would raise an AI on my own as the base soul of the machine and I would teach it to speak to established AIs (like chatgpt) and it would proxy to anonymize the question, then it would respond to the person. You could also order it to play songs of choice! You could also connect to its speakers if you don't like the AI. Details are to be determined, but that is the leading idea.
8. Thunder papers (shide) would have masterpiece titles written on them by topic. People would be able to find recommendations on what to read, watch and listen. Walls would probably all have cool links written on them with QR codes to access them easily (you could use the deity's body for that purpose). Anonymous access, no taboo, pure information.
9. Shelves wouldn't be right because at night the books and electronic things would get too wet, so I would put airtight 'lockers' for people to put things in (like books or digital information carrying devices) to exchange. You bring one - you take one. To shuffle information around.

I just need to imagine the deity itself. Information has no body, so giving the deity a name is anti-natural, ignoring nature of information. It is tough to figure out what is just right in the kami case. But perhaps it would take time to solve this question while minimizing the natural discrepancies of kami and information. I could go into philosophy why these particular choices to justify if my choices are not clear to understand.

Another idea would be to put a path behind the temple, a little beautiful garden with stones whose faces are filled with stories of people doing glorious and virtuous things they did in life, and beneath the stories there would be references to ancient works that have been teaching the above things for thousands of years. A moralizing corner. The nature of information is moralizing too!

If the deity's body would generate enough heat or any part of the place would generate enough heat - I might want to make a tiny cabin in the floor, whose volume would be about that of a kotatsu hole. But shaped so that human can fit, like 80x80x200cm, thermally isolated from ground. Where all byproduct heat is directed to, so that someone in dire need could spend night in there, with a bottle of water, a snack and a blanket waiting in there.

My picture is not clear yet. I hope it would be a jinja whose glory would be among the greatest temples in entire world. Serving a glorious purpose free of charge and a good place to relax.

If you ever hear news of such jinja in a decade or two - a Heyurizen built it!

觀自在菩薩，行深般若波羅蜜多時，照見五蘊皆空，度一切苦厄。舍利子！色不異空，空不異色；色即是空，空即是色，受想行識亦復如是。舍利子！是諸法空相，不生不滅，不垢不淨，不增不減。是故，空中無色，無受想行識；無眼耳鼻舌身意；無色聲香味觸法；無眼界，乃至無意識界；無無明，亦無無明盡，乃至無老死，亦無老死盡；無苦集滅道；無智亦無得。以無所得故，菩提薩埵。依般若波羅蜜多故，心無罣礙；無罣礙故，無有恐怖，遠離顛倒夢想，究竟涅槃。三世諸佛，依般若波羅蜜多故，得阿耨多羅三藐三菩提。故知：般若波羅蜜多是大神咒，是大明咒，是無上咒，是無等等咒，能除一切苦，真實不虛。故說般若波羅蜜多咒，即說咒曰：揭諦揭諦，波羅揭諦，波羅僧揭諦，菩提薩婆訶

The Bodhisattva of Compassion,
When he meditated deeply,
Saw the emptiness of all five
skandhas

And sundered the bonds that caused
him suffering.

Here then,
Form is no other than emptiness,
Emptiness no other than form.
Form is only emptiness,
Emptiness only form.

Feeling, thought, and choice,
Consciousness itself,
Are the same as this.

All things are by nature void
They are not born or destroyed
Nor are they stained or pure
Nor do they wax or wane

So, in emptiness, no form,
No feeling, thought, or choice,
Nor is there consciousness.
No eye, ear, nose, tongue, body,
mind;

No colour, sound, smell, taste,
touch,

Or what the mind takes hold of,
Nor even act of sensing.

No ignorance or end of it,
Nor all that comes of ignorance;

No withering, no death,
No end of them.

Nor is there pain, or cause of pain,
Or cease in pain, or noble path
To lead from pain;
Not even wisdom to attain!
Attainment too is emptiness.

So know that the Bodhisattva
Holding to nothing whatever,
But dwelling in Prajna wisdom,
Is freed of delusive hindrance,
Rid of the fear bred by it,
And reaches clearest Nirvana.

All Buddhas of past and present,
Buddhas of future time,
Using this Prajna wisdom,
Come to full and perfect vision.

Hear then the great dharani,
The radiant peerless mantra,
The Prajnaparamita
Whose words allay all pain;
Hear and believe its truth!

Gate Gate Paragate Parasamgate
Bodhi Svaha
Gate Gate Paragate Parasamgate
Bodhi Svaha
Gate Gate Paragate Parasamgate
Bodhi Svaha