updated: apr 2026

0xBolt

for hireboltcraft.ai

senior backend / data engineer. 20y. warsaw.

currently: solana ob imbalance tracking, cex-cex arb discovery, local llm refactoring workflows.

§ 01nowupdated April 2026
  • boltcraft: helping others to automate things rag, automations
  • homelab: 30+ services, last add: zigbee2mqtt remote reboot via python http server
  • 3 posts on medium about postgres internals (upsert wal bloat, btrfs cow pr environments, fillfactor/hot/visibility)
  • testing local qwen2.5-coder 7b on rtx 3060 ti for refactoring
§ 02shipped
  • 2026 → nowboltcraft.ai web + ai automation for smb
  • 2025 → 20260xely - yapstarter → aimhigherfull backend rewrite + solana program (volume-based rewards), be↔fe integration
  • 2025 → nowmexc market making botcly/irc pairs, 0% maker fee, s/v scoring
  • 2025protokols14 bullmq queues, pgvector rag, pg_branch on btrfs - zero-cost pr db clones, -60% latency, -250gb/day wal
  • 2024 → nowsolana wallet tracker>1000 wallets, helius webhooks, gmgn api
  • 2021 → 2025pfizer - data architectkpi metrics engine + snowflake data platform, rbac/rls, dbt data catalog, -70% data processing time
§ 03writes
  • 2026-04postgres fillfactor, hot updates, visibility mapmedium
  • 2026-03btrfs copy-on-write for postgres pr preview environmentsmedium
  • 2026-03upsert wal bloat: the silent query killermedium

all posts → medium.com/@boltpl

§ 04ops
tooling
neovim·tmux·claude code·ubuntu
db
snowflake (deep)·postgres (deep)·timescaledb·pgvector·clickhouse·mysql/mariadb
backend
node/ts·python
data
polars·dbt·airflow·kafka·fivetran
infra
docker·wireguard·cloudflare·self-hosted supabase
ai
anthropic api·openai api·ollama (qwen, llama local)
hardware
homeserver i7-7820x/128gb·macbook air m4·ssh over wireguard
§ 05reach
telegram
@boltpl
github
github.com/mgrom
x
@0xb0lt
medium
medium.com/@boltpl
mail
[email protected]

warsaw, pl·jdg·eu/us timezone friendly

§ colophon
generated 2026 · hand-written↑ top
0xBolt — plate