Engineering-grade tools
for working pros.
Wrong fuel blend melts a piston. Wrong heat load fails the permit. Microforge builds the technical software these pros never had — every calculation with a cited source, tested, and auditable before you pay.
- 03
- products
- Lambda BR · Lambda US · Kappa
- 323
- green tests
- 225 Lambda · 98 Kappa
- 100%
- core coverage
- engine · both
- 0
- outside capital
- indie · own code
The instrument
Real software, running.
A faithful sample of each engine's output — calculations with cited sources, the way the pro sees them on the bench. Lambda is live; open it and audit it now.
- Base
- Pump 93
- Blend in
- VP110 race gas
AKI
98
AFR
14.5
DENS
0.74
Add 2.5 gal VP110 / 10 gal
- Project
- Residential · Atlanta, GA
- Standard
- ACCA Manual J/S
HEATING
38,200
COOLING
24,600
AREA
1,850 ft²
Equip.: 40k furnace · 2-ton AC
PRODUCTS · MANIFESTO · STACK
In production now.
Lambda
λ · race gas & E85 blend calculator
Blend race gas and E85 with mass-weighted AFR and molar octane — the math forum spreadsheets get wrong. Runs in the browser, on your phone in the shop. Free — no signup.
AKI
100
AFR
9.8
E%
70%
Kappa
κ · residential heat-load (Manual J)
Manual J (ACCA) for US HVAC contractors. Free calculator live (no account); accounts + Pro rolling out next. Engine ±5% vs NREL, print-ready permit report.
vs NREL
±5%
TESTS
98
MANUAL
J + S
MANIFESTO
The professional niche is a desert.
The tuner does AFR in a spreadsheet. The HVAC tech sizes equipment by gut. The calibrator writes loads in a notebook.
Not because they're behind — because nobody built proper tools for them. SaaS serves lawyers, accountants, marketers. The bench professional got left out.
Microforge builds for that market. Small, focused, technical — one real problem at a time.
NUMBERS
323
green tests
100%
core coverage
03
products
Not a black box. Formulas with cited sources (Pearson/Turner, Anderson 2011, ANP, ACCA Manual J) and auditable code.
INFRA
AWS · region per market
Customer data stays in its region (BR in sa-east-1). LGPD/GDPR-ready by design.
MODEL
Indie maker
No investors. No CEO. No race to exit. The customer is the boss, not a VC term sheet.
STACK · OWN CODE
Built with everything that matters
A stack chosen to last, not to ride a hype cycle.
ABOUT THE FACTORY
Indie maker.
No race to exit.
Roberto Oliveira
BSc Computer Science · Networks
LPIC-2 · infra/security · indie
With a BSc in Computer Science, I've worked in infrastructure, networks and security for over a decade. Microforge is my attempt to build, solo, the tools professionals deserve — without waiting for a VC to decide.
No investors, no corporate team, no runway pressure. Focused on products that solve real pain — one at a time, done right.
Want to talk? Suggest a niche? Complain about something? roberto@microforge.app
START HERE
Blend on the math,
not a forum average.
Lambda is a race-gas & E85 blend calculator with the chemistry done right — mass-weighted AFR, molar octane, real density. Free, no signup.
Open Lambda US- Free to calculate
- No signup
- Open formulas
- Works on your phone