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heyobi/README.md

İbrahim Polat

PostgreSQL infrastructure, database internals, and geospatial engineering.

I work on the layer underneath applications — replication and failover, protocol-level proxies, storage extensions, build pipelines — and occasionally on something that has no business working at all.


Machine Learning & Systems

LazyLora · Python / C Out-of-core LoRA fine-tuning engine for 2.78T parameter MoE models (Kimi K3) on an 8 GB RAM laptop. Streams 1.56 TB of weights layer-by-layer from disk; forward pass verified numerically against an independent C implementation across all 93 layers.
flysoul · Python A 2,328-neuron circuit built from the 2026 Google Research / HHMI Janelia whole-CNS Drosophila connectome, driving a closed-loop agent against Dark Souls 3 boss encounters with spiking plasticity and reinforcement learning.

Databases & PostgreSQL

pg-prism · Rust A per-host sidecar proxy that restores the real client address PostgreSQL loses behind a TCP load balancer. Speaks the HAProxy PROXY protocol on one side and the Postgres wire protocol on the other. CI against PG 16 and 18; limitations documented honestly in AUDIT.md.
dbcenter-extensions · Shell Reproducible build system for prebuilt PostgreSQL extensions — PostGIS, pgvector, pgsql-http — with checksums and per-version output trees.

Systems & tooling

claude-code-server · Python Keeps Claude Code sessions alive on a Linux box and lets you drive them from a phone. A tmux + systemd session pool with self-naming sessions and survival across reboots.
sqlite.pdf · C / JS A PDF document that contains a working SQLite shell. SQLite compiled to asm.js — not WASM, because a PDF viewer's JavaScript engine has none — and embedded as document-level script. You type a query into a form field and rows appear.
python.pdf · C / JS The same trick with MicroPython: a real Python 3 interpreter running inside a PDF, state persisting across executions, output never leaving the document.

Hardware & simulation

Açık Kilit · OpenSCAD / Python A keyhole-less motorised mortise lock that drops into the existing pocket of a Turkish steel door without cutting it. Parametric CAD, MuJoCo mechanism simulation, gmsh + scikit-fem stress analysis, and a certificate-based challenge-response unlock protocol with a 19-scenario test suite.

Geospatial

EasyGnss · Python Position computation straight from a RINEX observation file — the awkward parts of GNSS processing reduced to a single run.
AutoKmeansforQgis · Python Automatic detection and classification of water bodies from satellite imagery using K-Means over the Orfeo ToolBox, scheduled and driven from QGIS.

Applications

PDFPaper · React / FastAPI A PDF processing platform: convert, merge, split, compress, encrypt and unlock. Dockerised end to end.

Writing

Notes and articles are staged in yazilar before they go out.

Elsewhere

ipolat2001@gmail.com

Pinned Loading

  1. LazyLora LazyLora Public

    Out-of-core LoRA fine-tuning and expert-routing measurement for Kimi K3 (2.78T MoE) on a 7.6 GB laptop: 93 layers streamed from a USB disk, forward checked against an independent C implementation, …

    Python 2 1

  2. EasyGnss EasyGnss Public

    The aim is to perform position calculation easily with the help of the RINEX file.

    Python 1

  3. dbcenter-extensions dbcenter-extensions Public

    Prebuilt PostgreSQL extensions for DBCenter: PostGIS, pgvector, pgsql-http

    Shell

  4. flysoul flysoul Public

    A MaleCNS-derived spiking fly circuit plays Dark Souls III (SoulsGym): what a fly's mushroom body learns, and what a synthetic readout on its senses can do

    Python

  5. pg-prism pg-prism Public

    A per-host sidecar proxy that restores the real client address PostgreSQL loses behind a TCP load balancer (HAProxy PROXY protocol -> PostgreSQL)

    Rust

  6. sqlitepdf sqlitepdf Public

    A PDF document that contains a working SQLite shell

    Python