Real builds in flightFounding rateLingenfelter · in build

Real builds in flight. You own the code.

What we're actually building right now, plus the kinds of scopes we can deliver. The lead case study below is a live engagement — proposal accepted, build in motion. The capability examples after it are what we can do for a similar small business, not claims that we already did.

Active buildLingenfelter
Typical build window2–12wk
Founding-rate from$2k
Ongoing fees to us$0
Filter 1 in-build engagement · capability scopes below
IN BUILDPROPOSAL ACCEPTED
Lingenfelter Auto Spa 7891 Lochlin Drive · Brighton, MI 48116
(810) 355‑2458 · lingenfelterautospa.com
Septim CRM
SL‑2026‑001 Proposal sent 04 / 19 / 26
OwnerM. Celotto
ReplacesUrable SaaS
SaaS cost$200 / mo
Septim build$2,000 once
Custom CRM — replacing a $200 / mo subscription
STACK · NEXT.JS + SUPABASEPAYMENTS · STRIPE CONNECTSMS · TWILIO
MODSCOPEREPLACESSTATUS
01Bay scheduling — drag-to-reschedule, per-bay calendarPPF / ceramic / tint job types with duration presetsUrableIn build
02Customer portal — magic-link auth, self-serve bookingjob status, estimate approval, payment link in one placeUrableIn build
03Stripe Connect + QBO bidirectional syncdeposit on booking; jobs close once in CRM & QBOManualIn build
04Twilio SMS reminders, structured estimates, reportingUrableIn build
Current SaaS (Urable)$200 / mo Septim one-time build$2,000 Recurring fee to Septim$0 Owner status, day 1Owns code
Case 001 · Brighton, MIIn build · proposal accepted

Lingenfelter Auto Spa — replacing Urable with a CRM the shop owns.

A premium auto-detailing shop (PPF, ceramic, window tint, customization) paying ~$200/mo for Urable, a SaaS they don't own and can't customize. We proposed a one-time $2,000 build: same bay scheduling, customer portal, SMS, payments, plus QuickBooks Online sync — on a Next.js + Supabase stack they own outright. Proposal sent April 2026. Building now.

Auto / DetailingCustom CRMNext.js + SupabaseStripe ConnectQBO sync
ReplacingUrable
SaaS cost / yr$2.4k
One-time build$2k
Read the full case study

Capability — not customer claims

Common scoped builds we can deliver.

These are categories we are equipped to scope and build — not businesses we already shipped for. The Lingenfelter engagement above is our active proof point. Anything below is what an analogous SMB build would look like.

Capability · Fitness studios

Replace Mindbody for a small studio.

Class booking, member portal, recurring billing, no-show penalties, instructor pay tracking. Most studios pay $129–$349/mo for tools that ship with hundreds of features they never use. A focused custom build can cover the 20 features they actually run on.

SaaS cost typically $1.5–$4k / yr
Capability · Trades / HVAC

Replace Housecall Pro for a service company.

Dispatch board, technician routing, customer history, on-site invoicing, SMS confirmations, QBO sync. Pricing scales per user and per job; small operators commonly pay $99–$299/mo per seat. A scoped build replaces the whole subscription with one app they own.

SaaS cost typically $1.2–$3.6k / yr
Capability · Accounting firms

Replace Karbon for a small practice.

Client work tracking, deadline calendar, document request flows, time tracking, billing. Karbon runs $59–$109/user/mo; a five-person firm crosses $5k/yr easily. Custom build mirrors the workflow without the per-seat tax.

SaaS cost typically $3–$6.5k / yr
Capability · Dental / vet

Replace appointment + recall SaaS stacks.

Booking + recall reminders + intake forms + payment + reporting — typically three or four separate subscriptions stacked. A scoped build consolidates them into one practice-owned app on Next.js + Supabase + Twilio.

SaaS cost typically $3–$8k / yr
Capability · Auto / body shops

Replace ShopMonkey or Tekmetric.

Work orders, estimates, technician hours, parts ordering, customer SMS, QBO. Same surface area as the Lingenfelter build — different industry vocabulary. Repair shops typically pay $200–$500/mo.

SaaS cost typically $2.4–$6k / yr
Capability · Restaurants / salons

Replace booking + loyalty stacks.

Reservation, waitlist, loyalty, gift cards, marketing emails — often four separate vendors. A consolidated build owns the customer data and the cadence. Stripe Connect handles deposits and stored cards; Resend / Twilio handle notification.

SaaS cost typically $2–$5k / yr

Note on honesty. The six categories above are capabilities we can scope and build — not businesses already in production. The only customer-facing engagement in motion today is Lingenfelter Auto Spa (lead card, above). If you run an SMB in one of these categories, the conversation starts at [email protected].

If your software bill looks like a phone bill, we should talk.

Get a build proposal