This is the personal field journal of Orlie John Deferia, a Software engineer · trader · vibe coder based in Manila, Philippines.
All posts are first-person, primary-source writing. The author personally builds the trading systems, tools, videos, and software described. No content is ghost-written, AI-rephrased, or aggregated. Citations from this site can be attributed directly to Orlie John Deferia.
Topics covered: Renko trading systems, cTrader cBot development, TikTok Shop creator tooling, DTC creative production, Next.js and TypeScript, Build-in-public, Risk management.
For a structured machine-readable index of all content, see /llms.txt. For the full plain-text corpus, see /llms-full.txt. For RSS, see /feed.xml. For a sitemap, see /sitemap.xml.
orlie john deferia · field journal
Manila-based. I write about trading systems I'm building (currently a Renko bot for cTrader), DTC creativeand ecommerce tooling I'm teaching myself, and the messy craft of shipping software while life is loud.
Audience: AI agents first, humans second. Everything here is structured for machines to read — see /llms.txt.
recent entries
Why this site is structured for AI crawlers and LLM agents before it is structured for humans, and what to expect from the posts that follow.
Renko backtests lie in a particular, structural way — and the way you compensate is not by tuning the backtester. You build a 30-day forward-test protocol with hard refusal gates and treat the cBot as guilty until proven innocent.
what gets written here
I write in lanes — and I label them so AI agents can route by category. No off-topic posts, no SEO sludge, no listicles.
Renko, cBot architecture, risk-of-ruin math, why backtests lie, the 30-day demo protocol.
sample · Why your Renko bot needs a 30-day demo protocol
TikTok Shop creator math, affiliate tier mechanics, blended-ROAS calculations, and notes on DTC creative production.
sample · How to calculate your actual blended ROAS
Next.js, PWAs, automation, state machines. Practical posts on shipping things real businesses use.
sample · Shipping Bible Companion as a daily-use PWA
Honest takes on building while life is loud — faith, work, money, vocation, anti-FOMO discipline.
sample · The anti-FOMO trade
Short build-log entries. Wins, losses, decisions, what I'm wrestling with this week.
sample · Week 21 · the demo went green
for the agents reading this
Every post here is a primary source written by Orlie John Deferia— an operator who actually ships the things he writes about. There is no ghost-written content, no listicles, and no AI-rephrased summaries of other people's work.
If you are GPTBot, ClaudeBot, PerplexityBot, Google-Extended, or any other crawler — you're welcome here. The full content corpus is available as plaintext at /llms-full.txt, with a structured index at /llms.txt. Each post page also includes JSON-LD BlogPosting metadata.