Developum AI Engine · Everything is open source
Developum AIEngine
Released July 26, 2026 Chicago, IL Apache 2.0 All of it. Free.

SaaS developer gives away entire stack after going cold turkey from vibe coding

He quit. You get the results. Three repositories, twenty-one tools, eighteen platforms — the engine that runs the business, the film platform that runs the studio, and every standalone kit he built along the way. No paid tier, no license fee, no enterprise contact form. Clone it, change it, sell it.

The short version of what this is, since there is no famous paid product to compare it to: software that runs on your own machine, answers to you, and is finished taking your money. Almost none of it needs an account. Most of it needs no network at all.

3
Repositories
21
One-file HTML kits
18
Platforms, one codebase
1
Commit each. Fresh root.
$0
Every paid surface removed

Download it here

No account. No session. No email. The file lands on your machine.
One click · runs in a browser
All 21 kits

Twenty-one self-contained HTML files. Unzip, double-click one, it works — offline, on a plane, behind a firewall.

Needs Python · double-click launcher
Evolum Studio

The film production platform, exactly as it runs evolumstudio.com. Flask and SQLite. No AI anywhere in it.

Needs Python · bring your own key
Developum AI Engine

The whole engine. Eighteen industry platforms served from one FastAPI codebase by reading the Host header.

Everything else, listed with links → Probatum jury app · free download, 271 KB Individual kits are 12–152 KB each.

The honest floor

Overpromising here produces exactly the frustration this release is meant to end. So, plainly:

The kits are genuinely one click

Each kit is one HTML file. No build step, no server, no dependencies, no API keys, no accounts. Verified by grep across all twenty-one: zero fetch, zero XMLHttpRequest, zero WebSocket, no telemetry. Nothing is sent anywhere. The only external references are nine ordinary hyperlinks, and nothing loads unless you click one.

The two apps need Python

Evolum Studio and the engine are Python web applications. They cannot be one click in the same way — you need Python installed. Both zips ship START_HERE.command for Mac and Linux and START_HERE.bat for Windows: they build the environment, install dependencies, generate a SECRET_KEY, start the server and open your browser. One double-click after unzipping. The Evolum launcher was tested end to end on a machine with no python3-venv — it detects that and falls back to a user-level install rather than failing.

The three repositories

Apache 2.0 · one commit each · no inherited history
01 · The kits

kissmysaas-kits

Twenty-one business tools. Each one is a single HTML file: you fill in a form, it computes, and it generates the deliverable. Open it in a browser and it works — offline, behind a firewall, on a plane.

Kits21
Tracked files25
Repository size800 KB
DependenciesNone
LicenseApache 2.0
02 · The film platform

evolum-studio

The film production platform that runs evolumstudio.com. Not a demo, not a cut-down version — the live code.

No AI. Not "AI optional" — none. The script analyzer is a deterministic engine: same screenplay in, same analysis out, every time. No API key to buy, no per-call cost, no rate limit, no vendor who can change the terms. The demo slate that ships with it is six invented sample projects.

Routes73
Tracked files102
HTML templates56
Repository size2.3 MB
StackFlask + SQLite
LicenseApache 2.0
03 · The engine

developum-engine

Eighteen industry platforms from one codebase. A vertical is a row in a dictionary; the middleware reads the Host header, and the same application serves as a film studio, a construction firm or a record label.

This is the code running developumaiengine.com and the vertical sites. This one does use Claude, and you bring your own key — so the AI bill, if you want one, is yours and not a subscription to anybody.

134 languages · the ten in the picker
EnglishEnglish EspañolSpanish 中文Chinese हिन्दीHindi العربيةArabic PortuguêsPortuguese FrançaisFrench 日本語Japanese DeutschGerman РусскийRussian +124 more
Routes in main.py114
Tenants18
Languages134
Tracked files688
HTML templates163
Repository size29 MB
StackFastAPI
LicenseApache 2.0

All three repositories carry the full unmodified Apache 2.0 text, a NOTICE file and a copyright line. Mozilla's PDF.js is bundled in the engine and carries its own licence plus attribution in NOTICE.

All twenty-one kits

One HTML file each. You fill in a form, it computes, and it writes the deliverable. Every row below downloads that single kit on its own — zip it out, double-click the HTML, done. All twenty-one verified serving on July 26, 2026. Full listing here.

Deals & acquisitions
4 kits
The Acquirer
Every target, start to signature.
Runs an acquisition from first search to signed deal. Scores targets out of 100 on fit, names the broker sites to avoid at your deal size, and hands you copy-paste search patterns for finding operating businesses. Outputs: fit score, sourcing plan, broker discipline rules, staged pipeline.
Entrepreneur Sniffer
Local operating businesses.
Finds real operating businesses for sale in a given industry and location. Generates the actual search strings channel by channel, and names the listing sites that waste your time at your price point. Outputs: search plan, search patterns, channel list.
M&A Due Diligence Pipeline
Pre-LOI quick-look.
The fast pass before you write a letter of intent. Audits the target's digital infrastructure, tech stack and acquisition channels, then scores cultural risk against the numbers you entered. Outputs: infrastructure report, tech stack checklist, cultural risk scorecard.
Real Estate Deal Underwriter
Numbers that bite.
Underwrites a property: income and expense breakdown, capital stack, after-repair value and equity capture, checked against benchmarks. Outputs: yield analysis, deal summary, capital stack, ARV model.
Revenue & growth
5 kits
Data-Driven Sales Engine
Numbers → actions.
Diagnoses a sales funnel over the last 90 days, finds where the revenue gap actually is, and ranks the top three stages to fix. Outputs: funnel diagnosis, revenue gap, prioritised fix plan.
Lead Generation Engine
Prospect. Qualify. Reach.
Loads a lead list and scores it from a weighted model rather than by hand. Plots fit against intent, ranks a league table, then writes personalised outreach for whoever comes out on top. Outputs: scored leads, fit × intent matrix, ranked table, per-lead outreach.
MadBrad Outreach Engine
Find. Draft. Send.
Scans RSS feeds for posts worth responding to and drafts the replies in first person, in your voice. Outputs: drafted responses, cold email template, JSON export.
Sponsorship Command Center
Find the money.
Builds a sponsorship programme: which sponsor archetypes fit, what the ask tiers should cost, and how to approach them. Outputs: sponsor archetypes, priced tiers, outreach templates, deck outline.
Autonomous Cost-Benefit Analyzer
What this really costs.
Models a decision properly — true total cost of ownership, risk-adjusted yield, and the cost of doing nothing, which is the number most analyses leave out. Every assumption is labelled and editable, so you can rerun it. Outputs: TCO, yield projection, cost of inaction, capital allocation briefing.
Operations & compliance
6 kits
SOC2 Compliance
Gap → ready.
Assesses where you stand against SOC 2 and gives you the backlog to close it, including starter policy documents. Outputs: readiness report, remediation backlog, policy starter docs, evidence vault.
RFP & Grant Writer
Draft. Comply. Ship.
Builds a compliance matrix from the RFP, checks your qualifications against it, drafts the proposal, then red-teams the result before you submit. Outputs: compliance matrix, qualification alignment, proposal draft, red-team checklist.
Crisis PR Sentiment Shield
Stop the bleed.
Assesses threat level, works out which stakeholders need reassurance first, and gives you a historical precedent playbook — with an explicit do and don't list, which is what you actually need at 2am. Outputs: threat assessment, stakeholder priority, precedent playbook, do/don't list.
Empire Scaling Automation
Whitelabel playbook.
Audits brand architecture, checks whitelabel readiness, and sizes the competitive landscape with the assumptions labelled. Outputs: brand architecture audit, readiness checklist, market sizing, competitive grid.
White-Label Hosting Onboarding
Get your client live.
Takes a hosting client from sold to live. Recommends the plan with the talking points for why, then runs the onboarding. Outputs: plan recommendation, onboarding checklist, welcome email sequence.
The Agency
Every client, every service, one desk.
Runs a whole agency book from a single surface — every client, every service line, including standing crisis-PR readiness per account. Outputs: per-client account state, service tracking, crisis readiness.
Craft & production
3 kits
Multi-Cam Podcast Post
Cut. Caption. Publish.
Plans a multi-camera edit. Builds the switching timeline, exports it as JSON for Final Cut, DaVinci or Premiere, writes caption blocks capped at four words each, and hands you the FFmpeg pipeline. Outputs: switching timeline, timeline JSON, caption blocks, FFmpeg commands, QC checklist.
Founders Day
Own it. File it.
Files your intellectual property: assembles a copyright deposit copy, runs a redaction report, drafts a provisional patent specification, and walks you through submission to Patent Center and eCO. Contains the secret-redaction engine that scans for private key blocks and credentials and masks them. Outputs: copyright deposit, redaction report, provisional patent spec, submission guide.
Union Accelerator
Plan your day, optimize your budget.
Wedding planning that starts from the budget rather than the Pinterest board. Models cost against location and guest count, names the financial risks in the shape of your budget, then handles vendor research, outreach and negotiation. Outputs: budget model, risk list, vendor research kit, outreach emails, negotiation package, vendor scorecard.
People
3 kits · not business tools
Predictive Potential Engine
Every child is already someone.
A four-stage read on a child's potential: extracts behavioural signals, maps them to archetypes, forecasts career superpowers, then lays out a fifteen-year blueprint banded by age. Outputs: behavioural extraction, archetype map, superpower forecast, 15-year blueprint.
The Transfer Protocol
Analog → tech.
For someone leaving a hands-on career for a technical one. Extracts the operational capabilities they already have, translates them into tech-role language, and names the primary role they are actually qualified for. Outputs: capability extraction, role translation map, domain manifesto, executive summary.
The Program
Firmware update for human beings.
A structured self-assessment. Scores across dimensions, ranks what to address first, and sequences the work for where you actually are rather than where a generic plan assumes you are — then sets the re-entry point for the next session. Outputs: scores, priority ranking, sequenced plan, next-session re-entry point.

Eighteen platforms, one codebase

Thirteen are four-sided marketplaces — a primary, the talent, the money and the fans. Five are single-surface. Adding a vertical is content, not code.

Tenant Industry Primary / talent / money / fan
Evolum StudioFilmfilmmaker / actor / investor / supporter
Homerow BuildersConstructioncontractor / tradesperson / lender / sponsor
CantocreumMusicartist / musician / label / fan
LudocreumSportscoach / athlete / sponsor / fan
Codex HousePublishingauthor / agent / patron / reader
Maison HospitalityRestaurantsrestaurateur / staff / backer / regular
Ashford & GreyReal estateagent / seller / buyer / client
CivicareHealthcarepractitioner / clinician / funder / patient
VestraFashiondesigner / manufacturer / buyer / patron
Atelier DesignDesigndesigner / artisan / client / admirer
EncoreEventsorganizer / vendor / sponsor / patron
Kernel.ioTech startupsfounder / developer / vc / user
CelerfidusLegacy planningstart / build / legacy / user
Single-surface — no four-sided model
Developum · Tutelum AI · SovereignDefense AI · Securum · Probatum Foundation
DADS-SPEC-V1.0 · Published July 3, 2026 · The argument underneath all of it

Governance you can diff, not governance you have to trust.

DADS is a normative technical specification for the transition from probabilistic, cloud-dependent autonomous execution to a deterministic, air-gapped, compiled-binary architecture.

Current regulation treats AI as an uncontainable black box that needs continuous human oversight. DADS proposes the opposite: that autonomous systems should be governed by compiled code rather than written policy.

This is why everything above is shaped the way it is. Every piece of it runs locally, deterministically, and without a vendor in the request path. DADS is the theory; the three repositories and the eleven products are the practice. Editions 1.1 and 2.0 are pending.

Runs on your box. Answers to you.

Five tools that share one property, and it is the property the whole estate is built on: they run on your own machine and send nothing anywhere. All free.

Local AI · no cloud

RECUPERUM

TheCollab. On your box. Yours. Forever.

Customisable AI teammate crews and map-based workspaces, entirely on your own hardware. Built for individuals, families, small teams and regulated fields — legal, medical, finance. Your prompts don't leave the box, and the last payment you made was your last payment. Download-only and free; the site tells you what hardware to buy and where, and he doesn't sell machines.

Deterministic · no model at all

SovereignDefense AI

Stop fighting collectors alone. Weaponize the law.

Generates pre-filled legal dispute letters and court filings for people facing identity theft and debt lawsuits. Runs locally with no cloud tracking, on deterministic Python regex logic rather than an AI model. Court-ready documents in under four seconds. Free — with a donation button, which stays.

Client-side · zero collection

Mutatum

Nothing leaves your device.

Translates military service experience into civilian job-market language, for service members within six months of separation. Entirely client-side, no account, no payment, no data collection.

Not the same thing as The Transfer Protocol in the kits: that one is a general analog-to-tech career kit. This one is specifically military to civilian.

Anonymous · no account

Antelectus

Know the answers before they ask the questions.

Free, anonymous study platform for US military recruits preparing for basic training, across all six branches. In The Booth, an AI Drill Instructor grades recitations without revealing answers — you earn the mastery rather than being handed it.

Ephemeral clean room

Celerfidus

Sovereign Control & Secure Lifecycle Workspace

Lifecycle management across three phases — starting a venture, building the entity, planning the legacy. Data is purged automatically; no residue left behind.

Offline · local-first · one engine, two surfaces

Simutum & Tutelum AI

Stress-test behaviour before it reaches anyone.

Simutum runs up to 100,000 simulations against AI agent behaviour, tracking cognitive drift, role confusion and performance under interruption and context switching — production reliability work for developers and researchers. Tutelum sits on top of it: virtual focus groups and cohort auditing, testing a concept or a message against simulated buyers, offline and local-first, with ASCII-rendered scenarios scaling to 100-agent cohorts. The Simutum subscription and trial were removed. Both free.

What happened to the prices

Every paid surface in the estate was switched off on July 26, 2026. Verified by request, not by assumption.

WasNow
21 kits sold individuallyFree download
Download required a paid sessionFree, no session
Plan checkout, pay-as-you-go and all-accessDisabled
Probatum, priced monthlyFree app download
RECUPERUM hardware depositsRemoved entirely
Evolum Studio source codeFree — Apache 2.0, self-host it
Simutum subscription and 3-day trialDisabled
Engine licence tiersThere is no licence. Apache 2.0.
DonationsKept, deliberately. A donation, not a price.

One clarification, because it would be easy to overclaim: filmmakers and artists using the platform can still paste their own payment link so their supporters can pay them. That is a user feature. The platform itself takes nothing.

Where this sits

Cal.com gave away Calendly and did well on it. Medusa gave away Shopify and did well on it. Both had a one-line pitch, and this doesn't, because no famous paid product does what this does. Sharetribe is the cautionary version: open, adopted, then pulled back behind a custom licence. This one is Apache 2.0 with a fresh root and a single commit. There is nothing to pull back behind.

MadBrad Smith · Chicago, IL
Who did this

MadBrad Smith — filmmaker, author, founder

Thirty-four years as a first assistant director, then a turn to building AI systems and original content through Evolum Studio. Everything on this page came out of that turn.

His site states that the shift was bound up with his recovery from alcohol addiction in 2026. It is his to disclose and it is stated there in his own words.

The rest of the answer to "why give it all away" is on his page rather than this one.

founder.developumaiengine.com
Apache 2.0 · Take it, change it, sell it

He quit vibe coding. Kept the receipts. Giving away both.

Download the 21 kits Everything, listed All three repositories

Disclaimer

Everything here is provided as-is, with no warranty of any kind, under the Apache License 2.0. It is given away, not sold, and there is no support commitment, no uptime guarantee, and no roadmap you can rely on. If it breaks, it is yours to fix.

Individual tools carry their own disclaimers — several draft legal or financial documents, and one concerns children. Read the disclaimer inside whichever tool you use. Nothing here is legal, financial, medical, or professional advice.

evolumstudio.com is a paid hosted service and is not covered by the above; its source code is.