LMX — sixteen small languages, one runtime

LMXsixteen interpreters
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LMX // SIXTEEN LANGUAGES, ONE RUNTIME

Small languages.One runtime.

16 little languages that share a lexer, a parser and a sandboxed worker. The file extension picks which one you are writing.

  • Free to run
  • One file to install
  • Nothing to install first
Run one in your browserDownload the CLI
The LMX browser IDE running a script and printing its output
THE IDEA

One extension picks the language.

Rename hello.lmx to hello.lmm and the same runtime reads it as a matrix machine. No config, no project file.

set name = "world"
set n = (2 + 3) * 4
print("hello, " + name)
print("n is " + n)

Output

hello, world
n is 20
THE FAMILY

All 16 of them.

7 run here with no account. Four need a live Leumas install. The rest touch the host machine and stay behind an operator's permission.

.lmxLMX — Full Language

General-purpose language: variables, math, if/for/while, functions, imports.

Runs here

.lmyLMY — Sequential

One statement per line — quick, calculator-style scripting.

Runs here

.lmzLMZ — Event-driven

Register on/emit handlers; reactive event-bus scripting.

Runs here

.lmmLMM — Math / Matrices

Vector accumulator + trigonometry + matrix algebra.

Runs here

.lmcLMC — Constraint Solver

Declare variables + equations; solve for the unknowns from what you know.

Runs here

.lmnLMN — Notifications

Declarative toast / alert / sound / desktop-message directives.

Runs here

.lmsLMS — Shell Automation

Runs OS shell commands (RUN / CAPTURE / IF_SUCCESS).

Operator only

.lmkLMK — GUI Automation

Controls mouse/keyboard via robotjs (native desktop only).

Operator only

.lmdLMD — Command Dispatch

Discovers namespaced commands and spawns them (experimental).

Operator only

.lmnetLMNET — Network

ping / fetch / post over the network (SSRF-sensitive).

Operator only

.lmtLMT — Timers

after/every time blocks that dispatch other scripts (experimental).

Operator only

.lmqLMQ — Query

Read stored collections — FROM / WHERE / SELECT / ORDER BY / aggregates.

Needs an install

.lmaiLMAI — Prompt Orchestration

Declare prompts and shapes, ASK a model, branch on the answer.

Needs an install

.lmgLMG — Grids

Author and run a programming grid as text — cells, $refs, dependency order.

Runs here

.lmaLMA — Any-tool

Call anything this install has — adapters, actions, MCP tools, capabilities.

Needs an install

.lmiLMI — Install

Ask the RUNNING deployment what it is and what it can actually do.

Needs an install

  • Runs here — Runs in the browser sandbox, no account.
  • Needs an install — Its vocabulary is a running Leumas install.
  • Operator only — Touches the host. Admin plus an explicit env flag.
QUICK SETUP

Three lines to your first run.

One file, carrying its own runtime. Nothing to install before it, nothing left behind after it.

  1. 1

    Download

    curl -fsSL -o lmx "<url>"

    the button on /download fills in the URL for your machine

  2. 2

    Make it runnable

    chmod +x lmx

    not needed on Windows

  3. 3

    Run something

    ./lmx hello.lmx

    the extension picks the interpreter

Get the binaryRead the documentation