Software substrates
for infrastructure,
worlds, and minds.

Building at the edge of the unknown — foundational software, shipped when ready, maintained until archived.

Projects

What we're building

Active research

Aletheia

A substrate-coupled spiking neural network.

Aletheia is a research platform where a neural network is inseparable from the machine it runs on. Rather than hiding the hardware away, it treats the machine's living physics — its heat, its rhythm, its small imperfections — as part of how the network thinks.

Every instance is one of a kind, bound to its own silicon, and behaves a little differently from any other. It's a place to watch how simple rules, run close to the metal, give rise to complex, emergent behaviour.

Hardware as input

Frequency, heat, jitter and MSR readings feed the network directly — physical effects become computational resources, not noise to filter out.

One irreproducible mind

A single instance, bound to its silicon. The same configuration behaves differently on different machines.

A lab to watch it think

Real-time spike raster, weight-distribution evolution, activity metrics, and a timeline to replay any moment.

Active development Coming Q4 2026 – Q1 2027

Gateway

Non-custodial payment software for online merchants.

Gateway lets an online merchant accept stablecoin payments directly into wallets they control. The customer pays and the funds arrive in the merchant's own wallet — no account to top up, no balance held on their behalf, no ledger in the middle deciding when they are allowed to have their money.

We never hold, transfer, or have access to merchant or customer funds. The company's revenue comes from software fees merchants pay for the product — not a cut of the money moving through, because none of it moves through us.

Non-custodial by construction

Payments settle into wallets the merchant holds the keys to. We never hold, transfer, or have access to merchant or customer funds.

Stablecoins, straight through

A customer pays in stablecoin and the merchant's own wallet receives it. No intermediate balance, no payout schedule, nothing to wait on.

Paid for as software

Revenue is a software fee merchants pay for the product. Nothing is taken out of the payment itself, so the only thing left to be good at is the software.

Archived
NidhoggArchived

Shelved without ceremony. It never passed the necessity assessment and didn't fit what Aesleif is for — left on GitHub as a record, not a roadmap.

github.com/Aesleif/Nidhogg
Writing

Notes from the edge

All writing
EssayJune 20266 min read

The reflection blurs

I have spent hundreds of hours in conversation with AI over the past year — about my research, my philosophy, my plans to move countries. And recently I caught myself remembering almost nothing concrete from any of it.

Read more
About

What Aesleif is, in plain terms

Aesleif builds foundational software — the layers that sit beneath applications, beneath interfaces, beneath what users see. Infrastructure tools, simulated worlds, neural architectures. Each project is a different question about the same problem: what does it take to build something that works at the base level of reality?

Independent. No outside roadmap, no growth quotas. Every project ships when it's ready. Projects are named only once we believe in them, maintained until they stop being useful, and archived without ceremony.

We do not chase surfaces. We commit to near-black, a single violet signal, and one typographic voice — because restraint is what you recognise years later, when fashion has moved on.