[verdict][curated prompt][source: app.leaselineage.com]
Can I vibecode LeaseLineage?
// buildable in a weekend, but real gaps stay open
A solo broker can build the CRM, CSV prospecting, draft sequences, and pipeline in a weekend, but reliable contact data, Gmail and Outlook sync, deliverability, compliance operations, and brokerage collaboration are ongoing products.
confidence: high
what it is: Prospecting, outreach campaigns, tenant demand, and deal tracking for commercial real estate brokers
Buildability index · an editorial game
- Price 79 $/month weight: plus 3
- Time multi-day weight: plus 1
- Category automation no weight
- Moat proprietary data · integrations · infrastructure scale weight: minus 5
- Confidence high weight: plus 1
- What you lose 6 items weight: minus 3
- Site app.leaselineage.com (si apre in una nuova scheda) no weight
The moat outweighs the price: rebuilding this is a project, not an evening.
Gioco editoriale: il verdetto dice se un agente può, l’indice se conviene.
What you build
Import or research prospects, organize them by property or tenant need, draft a reviewed email sequence, and track replies and deal stages.
what you need
- local web app
- SQLite
- CSV import
- OpenAI API key
- optional SMTP credentials
The personal CRM and drafting loop is buildable; the managed data and email operations are the subscription.
The prompt
A weekend with a coding agent. The gaps that stay are right below, under “what you lose”.
Build me a local commercial real estate outreach workspace to replace LeaseLineage. Requirements:
- A local web app using Node, Express, better-sqlite3, and server-rendered EJS,
with a little vanilla JavaScript; store everything in data/leaselineage.db.
- Import prospects from CSV with company, contact, title, email, market, asset
class, property, source, and notes; deduplicate by lowercase email.
- Show a prospect table with search, filters, tags, and a detail page containing
notes, activity history, and a next-follow-up date.
- Let me create a campaign from filtered prospects and draft a three-step email
sequence with the OpenAI API; keep its key and optional SMTP credentials in .env.
- Every generated message must remain a draft until I approve it. Support test-send,
scheduled send, daily send limit, unsubscribe footer, and a suppression list.
- Poll one IMAP inbox every five minutes, match replies by Message-ID and email,
stop remaining steps for that prospect, and show replies in a unified inbox.
- Track opportunities on a kanban board with New, Contacted, Replied, Meeting,
Proposal, Won, and Lost columns; moving a card writes an activity event.
- Provide CSV exports for prospects, campaigns, activities, and opportunities.
Bind to localhost only; no accounts or telemetry beyond email and OpenAI calls.
- Out of scope: contact-data enrichment, Gmail or Outlook OAuth, multi-user teams,
custom sending domains, and legal compliance guarantees.
- Include a README with setup, CSV columns, .env variables, IMAP app-password notes,
backup instructions, and a warning that I remain responsible for lawful outreach.Curated prompt: written and reviewed by hand for this app. In English on purpose — it is the language coding agents work best in.
What you lose
- Apollo and Hunter prospect data
- Gmail and Outlook OAuth and reply sync
- managed sending and deliverability
- brokerage team workspace
- custom sending domains
- hosted compliance and suppression operations
Why people still pay
They pay to keep contact discovery, inbox connections, reply attribution, sending controls, suppression, reporting, and team access working while they focus on brokerage.
moat: Proprietary data Integrations Infrastructure scale what a moat is
data/integrations/deliverability/compliance
Who has already built it
Starting from here is still vibecoding: the prompt is for when you want it exactly your way.
- Mautic (opens in a new tab) — Open-source marketing automation platform that covers campaigns and contact management, without the commercial real estate workflow. (alive)
Do you agree?
The vote balance
Ancora nessun voto: il tuo è il primo.
Nessun voto ancora — il primo pesa.
