IDEAS
EXPERIMENTS
SMALL SYSTEMS
A SMALL SPACE OF THINGS I BUILD.
A pure functional language with a native compiler.
Immutable values, pattern matching and type inference. A full toolchain for turning expressions into native executables.
import Ashes.IO as io
let recursive sum lst acc =
match lst with
| [] -> acc
| x :: rest -> sum(rest)(acc + x)
in io.print(sum([1, 2, 3, 4, 5])(0))EXAMPLE FROM THE ASHES README
3D hockey game, stylized like 8bit.
Pick a club, chase the puck, and try to stay out of the box. A hockey game with exhibitions, seasons and arcade runs.
Datadog search with LLM assistance. An indexing worker, API and CLI for exploring operational data.
RepositoryA configurable terminal dashboard for active and static data, with a real-time interactive interface.
RepositoryA playground for monitoring AI agents, real-time interaction, automation and data visualization.
RepositoryA local terminal and TUI coding-agent harness, with semantic indexing, approval modes and optional LSP support.
RepositorySpace for ideas that aren’t quite ready to leave the notebook.
I’m Mattias Högnäs. I build software for a living and for fun.
This place however is my own personal space of exploring ideas and sharing what I make.
Language design / Game development / Curious systems
Ashes · StickAndPuck
Massentropy takes its name from the relationship between mass and black-hole entropy. I like the idea that a compact set of rules can produce something surprisingly complex. It’s part of what draws me to building software.
For a nonrotating, uncharged black hole, entropy is proportional to the area of its event horizon—and grows with the square of its mass.
S = 4πkBGM² / ℏc