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Useful software,thoughtfully built.

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A portfolio terminal. Commands: help, about, stack, services, workflows, projects, contact, and clear. Use up and down arrows for command history, or Tab to complete a command.

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Project 01
Python CLIRelease candidate
~/query-witness

Connecting to the live runner…

Waiting for a real run

Query Witness

A Python CLI that finds the data where two SQL queries disagree, then saves a witness you can replay.

  • Python
  • DuckDB
  • SQLGlot
  • SQL
  • Bash
Inside the file
The problem
A SQL rewrite can look harmless and still change the result. A concrete counterexample makes that difference easier to inspect.
What I built
A command-line search that generates valid data, compares both queries, and removes rows while keeping the difference. It exports the data, queries, and results for replay.
See the witness
Project 02
Work / 02Placeholder

Project name

Project details coming soon.

Inside the file
The problem
The need that made this worth building.
My contribution
Scope of work and the engineering decisions behind it.

Services.

All services

Apps, integrations, and a little less busywork.

Use the previous and next buttons, swipe, or focus the cards and use the left and right arrow keys.

Example workflow

Customer support

Answer questions and pass tricky cases to your team.

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Next.jsCustomer questionGoogle DriveHelp documentsShopifyOrders & productsPostgreSQLAccount recordsGmailEmail historysupport.tsRetrieve contextAgentTroubleshoottriage.tsRoute the resultReplyAnswer & sourcesSpecialistEscalated ticketNext.jsCustomer questionGoogle DriveHelp documentsShopifyOrders & productsPostgreSQLAccount recordsGmailEmail historysupport.tsRetrieve contextAgentTroubleshoottriage.tsRoute the resultReplyAnswer & sourcesSpecialistEscalated ticket
A Next.js support chat and connected sources feed support.ts. The source node cycles through Google Drive help documents, Shopify orders and products, PostgreSQL account records, and Gmail history. The agent uses the retrieved context to answer questions and troubleshoot. triage.ts routes the result back to the customer or escalates an unresolved issue to a specialist with the conversation attached. The Agent can use Grok, Claude, OpenAI, or Gemini; the four logos represent provider options.
Example workflow

IT operations

Catch an incident, investigate it, and coordinate a fix.

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AWSSystem alertsops.tsOpen an incidentAgentDiagnose issueGitHubIncident ticketTemporalCoordinate stepsrunbook.tsApproved fixOn-callEngineer handoffAWSSystem alertsops.tsOpen an incidentAgentDiagnose issueGitHubIncident ticketTemporalCoordinate stepsrunbook.tsApproved fixOn-callEngineer handoff
AWS monitoring alerts reach ops.ts, which creates or updates a GitHub issue and asks the agent to diagnose the incident. Temporal coordinates an approved runbook or an escalation to the on-call engineer. The incident ticket holds the investigation and resolution record. The Agent can use Grok, Claude, OpenAI, or Gemini; the four logos represent provider options.
Example workflow

Sales and marketing

Turn a brief into content your team can review and publish.

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Next.jsLead formsMetaCampaign resultscampaign.tsBrief & contextAgentPlan & writeCreative toolsImages & videoReviewCopy & visualsResendSend outreachInstagramPublish contentNext.jsLead formsMetaCampaign resultscampaign.tsBrief & contextAgentPlan & writeCreative toolsImages & videoReviewCopy & visualsResendSend outreachInstagramPublish content
Next.js lead forms and Meta campaign results feed campaign.ts, which assembles the brief and context. The agent qualifies leads, drafts copy, and sends a creative brief to image and video tools. Creative tools is a placeholder for the production service. A person reviews the copy and visual assets before Resend sends email or the Instagram API publishes approved social content. The Agent can use Grok, Claude, OpenAI, or Gemini; the four logos represent provider options.

1 of 3: Customer support

About.

I’m Mert. I like figuring out how things work and building software that’s useful to people.

Most of my work is in TypeScript and Python, from backend systems to developer tools. I like staying with a problem from the first sketch to the working code.