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Leni Aniva

@aniva.bsky.social
160 followers 70 following 209 posts

🔧 Researcher in Machine Assisted Theorem Proving at centaur.stanford.edu ☯️ Director of NorCal Hakkero Factory No. 1 (Physics-based #touhou #cosplay) 🔗 leni.sh, pixelfed.social/chrysoberyl ❄️ Training AI on my content is prohibited

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Leni Aniva @aniva.bsky.social · 06/10/2026
Somehow Kawausagi has one. You can ask him.
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Leni Aniva @aniva.bsky.social · 06/10/2026
www.youtube.com/watch?v=kB4f... なぜANAの音楽は「神々が恋した幻想郷」と似ているか (2:32) Why is ANA's music similar to "Gensokyo the Gods Loved"? (2:32) #touhou #東方Project
youtube.com
ANA(All Nippon Airways) boarding music
YouTube video by yyy ttt
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Leni Aniva @aniva.bsky.social · 06/10/2026
Yes, but I and Kawausagi both don't have a machine that can read it.
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Leni Aniva @aniva.bsky.social · 05/10/2026
博麗神社例大祭 w/ @kawausagi.bsky.social #東方Project #コスプレ #touhou #cosplay
"Shinano New Video Library"
"すばらしきわが人生"
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Leni Aniva @aniva.bsky.social · 02/10/2026
最北端のコスプレ #宗谷岬 #九十九八橋 #東方Project #tsukumoyatsuhashi #cosplay
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Leni Aniva @aniva.bsky.social · 27/09/2026
www.youtube.com/watch?v=r49j... Presentation of Prismriver.lean at FARM 2026 (with Yatsuhashi)
youtube.com
[FARM'26] Prismriver: Formalization of Music Theory and Algorithmic Composition in Lean 4
YouTube video by ACM SIGPLAN
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Leni Aniva @aniva.bsky.social · 17/09/2026
Presenting the Nazrin paper in FMCAD 2026 at TU Graz wearing #TsukumoYatsuhashi #cosplay (not really). This set is an early Edo period design for Yatsuhashi, with embroidered fluorescent lines.
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Reposted by Leni Aniva
Hoshino Lina (星乃リナ) 🩵 3D Yuri Wedding prep!!! @lina.yt · 14/09/2026
I've said it before. Vibe/AI coding is a symptom of the software industry's problem with tech debt, bloat, over-complexity, and feature creep. If you are using AI to write "boilerplate"... why are you writing boilerplate? Good tooling doesn't need boilerplate. Re: vt.social/deck/@ariadn...
vt.social
VT Social
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Leni Aniva @aniva.bsky.social · 13/09/2026
I have made a joke with my manager that if I get invited to KIAS for a talk, I'll make a Hanbok, so Hanbok version #KomanoAunn it is then!
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Leni Aniva @aniva.bsky.social · 13/09/2026
💯
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Leni Aniva @aniva.bsky.social · 11/09/2026
If you plan to visit San Francisco's TIAT gallery, just know that it charges $10 for admissions and has a bunch of AI generated art that aren't even good. There are still non-AI exhibitions.
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Reposted by Leni Aniva
TouhouFest Official @touhoufest.org · 07/09/2026
Good morning, everyone!! We have a message to share with you from ZUN-san about the release of Touhou Koumakyou: New Classic! #touhou #東方Project
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Leni Aniva @aniva.bsky.social · 07/09/2026
x.com/fe1_Xing/sta... 🥹
x.com
かにばく@秋例き18a (@fe1_Xing) on X
かにばく@秋例き18a (@fe1_Xing) on X
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Leni Aniva @aniva.bsky.social · 06/09/2026
I'm trying to convince claire to wear this to FARM next year
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Leni Aniva @aniva.bsky.social · 06/09/2026
Is a Sari (based on Benzaiten/Saraswati) version of Tsukumo Benben a good idea? I might make this next year.
Design for Tsukumo Benben cosplay with Sari
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Leni Aniva @aniva.bsky.social · 05/09/2026
I'm going to Reitaisai this autumn!!
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Leni Aniva @aniva.bsky.social · 03/09/2026
The next cosplay design will involve Laplace transform
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Leni Aniva @aniva.bsky.social · 01/09/2026
If you are short on wallpapers take a look at WikiLovesEarth wikilovesearth.org/wiki-loves-e...
wikilovesearth.org
Wiki Loves Earth International presents the best images in 2025! – Wiki Loves Earth
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Leni Aniva @aniva.bsky.social · 31/08/2026
What if I want my favourite characters to stay obscure
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Leni Aniva @aniva.bsky.social · 31/08/2026
centaur.stanford.edu/event_centau... The schedule for Stanford Centaur Lab's 2026 annual meeting is public. I'll give a talk about GNN for Theorem Proving (Nazrin).
centaur.stanford.edu
events
Center for Automated Reasoning at Stanford University
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Leni Aniva @aniva.bsky.social · 28/08/2026
I drafted and made this early Edo period Kosode and Hakama in FreeCAD. It is very useful to overlay the pattern pieces and compare sleeves and collar lengths.
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Leni Aniva @aniva.bsky.social · 26/08/2026
Chair of FARM '26 (Mae Milano): "Do you think I'm not online enough to know why your paper is called Prismriver" (Presenting codeberg.org/aniva/Prismr... with @lambdaclaire.bsky.social) #tsukumoyatsuhashi #cosplay #九十九八橋 #東方コスプレ
I presenting accompaniment generation composition with Claire Wang
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Leni Aniva @aniva.bsky.social · 20/08/2026
#九十九八橋 のコスプレを作ている #tsukumoyatsuhashi
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Leni Aniva @aniva.bsky.social · 19/08/2026
Resist #dyeing Yatsuhashi
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Leni Aniva @aniva.bsky.social · 12/08/2026
#vacuumtube #真空管
A small vacuum tube lit in the darkA small vacuum tube powered with test leads
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Leni Aniva @aniva.bsky.social · 06/08/2026
Ants here have learned to use a straw
A group of ants using a miniature (.2mm thick) straw to drink from a droplet
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Leni Aniva @aniva.bsky.social · 05/08/2026
Using capacitance of orthogonal conductors to measure the position of hand. (before anyone asks, this is for a cosplay)
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Leni Aniva @aniva.bsky.social · 27/07/2026
FMCAD 2026 Accepted Papers: fmcad.org/FMCAD26/acce...
fmcad.org
Accepted Papers
Authors Title Ilana Shapiro, Sorin Lerner and Nikolaj Bjørner Parallel SMT Solving via Dynamic Partitioning, Core-Guided Pruning, and Backbone Detection Alexander Bai, Chris Hawblitzel and Andrea Latt...
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Leni Aniva @aniva.bsky.social · 22/07/2026
Incredible crossover
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Leni Aniva @aniva.bsky.social · 22/07/2026
The Nazrin paper which introduced Transposing Atomization in #leanprover has been accepted to FMCAD '26! For an explanation of the algorithm and the source code, see leni.sh/post/260802-...
leni.sh
Nazrin: A Transposing Atomization Algorithm | The Chrysoberyl
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Leni Aniva @aniva.bsky.social · 22/07/2026
@mirihawke.bsky.social took these pictures when I won the #TouhouFest '26 #cosplay craftsmanship competition as #toyosatomiminomiko! #東方コスプレ #豊聡耳神子
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Leni Aniva @aniva.bsky.social · 21/07/2026
If you liked Nazrin (which is not PL) you might also like this one arxiv.org/abs/2606.19936
arxiv.org
Prismriver: Formalization of Music Theory and Algorithmic Composition in Lean 4
Music theory obeys a rich set of mathematical rules and symmetries. These symmetries follow mathematical structures which can be verified and expressed in the precise language of a proof assistant. In...
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Leni Aniva @aniva.bsky.social · 19/07/2026
Ultraviolet Tsukumo Yatsuhashi 紫外線の九十九八橋 YVO4:Eu
Yatsuhashi's headband cosplay
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Leni Aniva @aniva.bsky.social · 18/07/2026
Normalize wearing folk costumes to conferences
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Leni Aniva @aniva.bsky.social · 14/07/2026
I'm excited to announce that my paper, Prismriver, with @lambdaclaire.bsky.social, has been accepted into FARM '26! Prismriver is a music formalization library in #leanprover. This blog post contains an explanation of the paper. leni.sh/post/260801-...
leni.sh
Announcing the release of Prismriver.lean | The Chrysoberyl
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Leni Aniva @aniva.bsky.social · 11/07/2026
I want to see it
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Leni Aniva @aniva.bsky.social · 10/07/2026
Logo for Stanford #Touhou Society coming this autumn
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Leni Aniva @aniva.bsky.social · 09/07/2026
Maybe something like this? 🟠⚫ = Zig ⚫🟠 = Rust
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Leni Aniva @aniva.bsky.social · 06/07/2026
It summons a Nixie. I already sacrificed my time for you, so it's free to use.
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Leni Aniva @aniva.bsky.social · 06/07/2026
I only had this idea after seeing Turbo put Cirno in Säkkijärven Polkka
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Leni Aniva @aniva.bsky.social · 06/07/2026
Winter cosplan: Ladoga Karelian #lettywhiterock (レティ・ホワイトロック)
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Leni Aniva @aniva.bsky.social · 06/07/2026
leni.sh/post/260705-... Declarative self-hosting #concourseci in #NixOS with secret provisioning! #devops #selfhosted See example: ci.leni.sh
System structure of Concourse CI service with OIDC provider and secret engine; Concourse Web, Secret Engine, OIDC provider authenticate with each other using certificates. Workers communicate with the web node using ssh keys. All services are behind a proxy.
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Leni Aniva @aniva.bsky.social · 05/07/2026
colours of programming languages
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Leni Aniva @aniva.bsky.social · 04/07/2026
🔵🟡 = Python 🔴🟣🟢 = Julia 🔵🟠 = Java 🔵 = C++ 🟠⚫️ = Rust ⚪️ = Lean 🟣 = Haskell 🟢⚪️ = VimScript 🔵🟣⚪️ = Nix 🟡 = JavaScript ⚫️⚪️ = Bash ...
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Leni Aniva @aniva.bsky.social · 03/07/2026
How can I cite a video game?
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Leni Aniva @aniva.bsky.social · 03/07/2026
#concourseci #forgejo resource: Integrate various Forgejo functions with Concourse #CI codeberg.org/aniva/forgej...
codeberg.org
forgejo-concourse
A Forgejo Resource for Concourse CI
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Leni Aniva @aniva.bsky.social · 28/06/2026
#touhou #東方Project #cosplay #東方コスプレ Sword-drawn #toyosatomiminomiko 剣を抜く #豊聡耳神子
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Leni Aniva @aniva.bsky.social · 27/06/2026
5760lm 七星剣 (Big Dipper Sword) for Toyosatomimi no Miko #touhou #cosplayprop
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Leni Aniva @aniva.bsky.social · 24/06/2026
#touhou #cosplay #toyosatomiminomiko #東方Project #豊聡耳神子 Photographer: @ironiamarisa.bsky.social
Polaroid photograph of a Toyosatomimi no Miko cosplay on a wooden table
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Leni Aniva @aniva.bsky.social · 21/06/2026
I won the #cosplay craftsmanship contest at #TouhouFest '26! Complete design schematic: codeberg.org/NHF/Cosplay-...
Medal of TouhouFest cosplay craftsmanshipToyosatomimi no Miko's sword cosplay prop, drawn, and litBacklighting on the Miko sword
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