Python on Caleb Christensen

Building a RAG Pipeline for Personal Knowledge Management

Mon, 08 Dec 2025 00:00:00 +0000

Overview

An experimental project to index my personal notes (Org-Mode) into a vector database for semantic search and chat interaction. (Note: This project is in progress and is not published yet).

Solving the "Blurry Line" Problem: Engineering a Python CLI for E-Ink Devices

Thu, 04 Dec 2025 00:00:00 +0000

Introduction

I love my Supernote Manta. It’s a fantastic e-ink writing tablet. But like many e-ink devices (reMarkable, Boox), it suffers from a specific hardware constraint: no sub-pixel anti-aliasing.

If you take a standard PDF template —say, a ruled notebook page generated by a generic tool— and load it onto the device, the lines often look gray, fuzzy, or inconsistent. This happens because the lines land on fractional pixel coordinates (e.g., \(y = 10.4\)), forcing the display controller to dither the pixels. On a crisp 300 DPI e-ink screen, this blur is immediately noticeable and reduces the “paper-like” contrast.

Sales Funnel Efficiency & Rep Performance Analysis

Mon, 01 Dec 2025 00:00:00 +0000

Overview

Role

Revenue Operations Analyst / Sales Strategy Lead

Objective

Analyze raw sales performance data to identify revenue leakage, optimize lead distribution, and define enablement strategies.

Context

About This Case Study: This analysis was completed in the course of my GTM Team Lead role, this is an restroactive refinement of the process I used to identify optimization opportunities and present actionable recommendations.

Figure 1: Sales Efficiency Heatmap Data