~/sajjad $ ls ./stack
← cd ~
Stack
What I build with
Grouped by the job rather than the vendor — every tool listed against the thing on this site it actually produced.
Stack
What I build with, and what I built with it.
Grouped by the job rather than the vendor — each tool listed against the thing on this site it actually produced.
Databases & data
Every system on this page writes to Postgres. The security work, the backups and the reporting all start there.
PostgreSQL9 production databases
Row-level security55 tables audited
SQL migrations3 shipped, zero downtime
SECURITY DEFINERvoucher redemption, QR tokens
pg_dumpnine databases, weekly
pandasGP reporting, mail analysis
Building things people use
Two apps in daily use by staff, one on the App Store, and the guest-facing platforms alongside them.
Swift / SwiftUIstaff app, v1.4+
Supabaseauth, realtime, storage
Edge Functionsorders, refunds, email
APNsrota and swap notifications
Single-file HTMLvoucher scanner, this site
Netlifyfour live sites
Money moving
The part that has to be right. Live card payments, reconciled against the database.
Stripelive payments, 4 webhook events
Webhookspayment reconciliation
Realtimebar screen, per-order timers
Refundsproven end to end in service
Automation & AI
Scheduled work that runs without me, with deterministic guard rails around anything a model proposes.
Python (stdlib)invoice pipeline, agent
Microsoft Graphmail, device-code OAuth
Provider-agnostic LLM~£1/month to run
Twilio Studiocall routing, 3 departments
ReportLabweekly PDF reporting
n8nautomation trials
Hardware
One project, but it covers the ground from board to phone app.
ESP32-S3push-to-talk pendant
BLEdevice to phone
Speech-to-textvalidated before building