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Deep dives into software engineering, inclusive technology, and lessons from building real products.

12 posts found/ 295
Cover image for blog post: 30 days later: numbers, mistakes and next steps
#lemon-code#lemon-model#retrospectiva

30 days later: numbers, mistakes and next steps

448 CLI commits, 152 app commits, 268 model-lab commits, 67 ADR documents across 57 IDs and no promoted model. The series wrap-up, real data only.

4 min read
44
0
Cover image for blog post: Evals before hype
#evals#llm#machine-learning

Evals before hype

An answer with 'if n == 20: return 6765' passes every Fibonacci test. In lemon-model it scores zero. Here's the rest of the system that keeps hype from becoming a release.

5 min read
48
0
Cover image for blog post: LoRA and QLoRA with MLX on Apple Silicon
#lora#qlora#mlx

LoRA and QLoRA with MLX on Apple Silicon

My first attempts to train the 7B on the Mac hit the memory safety cutoff, even with MLX under 14 GB. The pilot that passed used 8 layers, rank 4 and finished in 200 seconds.

5 min read
39
0
Cover image for blog post: A local coding model on the Mac
#mlx#apple-silicon#llm-local

A local coding model on the Mac

With 8K tokens of context, the 7B model took 88 seconds to start answering on my M3 Pro. The 1.5B took 24. Here's the full benchmark and why I picked the bigger one anyway.

5 min read
37
0
Cover image for blog post: What I learned building a CLI and a native app together
#arquitetura#cli#macos

What I learned building a CLI and a native app together

A momentary SQLite lock tripped my app's circuit breaker, which then showed fallback data and a banner covering the input field. The fix fit in five rules.

4 min read
43
0
Cover image for blog post: OpenTelemetry to observe a coding agent
#opentelemetry#observabilidade#agentes

OpenTelemetry to observe a coding agent

My agent's telemetry ships disabled, points at localhost by default and excludes prompts. It still shows duration, fallbacks and routing decisions.

4 min read
50
0
Cover image for blog post: A native SwiftUI app on top of a CLI
#swiftui#macos#json-rpc

A native SwiftUI app on top of a CLI

The first commit of lemon-code's macOS app had no screens. It was the contract with the CLI. Here's why that order kept me from rewriting the agent in Swift.

4 min read
42
0
Cover image for blog post: ADRs as project memory for multiple agents
#agentes#adr#arquitetura

ADRs as project memory for multiple agents

lemon-code has six ADRs numbered 0049, all created on the same day. That mistake teaches more about project memory with multiple agents than any well-numbered ADR.

4 min read
51
0
Cover image for blog post: Guardrails and approvals in a coding agent
#agentes#seguranca#guardrails

Guardrails and approvals in a coding agent

The CLI's --yolo flag still refuses rm -rf ~. Here are lemon-code's three guardrail layers and why the first one can't depend on configuration.

5 min read
38
0
Cover image for blog post: Model routing with explainable scores
#agentes#roteamento#llm

Model routing with explainable scores

For HTTP-provider routes, lemon-code records score factors. This teaching example shows how to read the sum and distinguish it from the JEV layer.

6 min read
52
0
Cover image for blog post: Bun + Ink: a terminal UI in React
#bun#ink#react

Bun + Ink: a terminal UI in React

lemon-code's TUI is React: Box, Text and hooks rendered to ANSI by Ink. The post covers three patches needed in Ink's build under Bun on the Mac.

6 min read
49
0
Cover image for blog post: Use an eligible CLI first, HTTP providers as fallback
#agentes#cli#lemon-code

Use an eligible CLI first, HTTP providers as fallback

I reached for an HTTP provider on tasks an installed CLI could handle. lemon-code's CLI-first rule fits in four lines of precedence.

5 min read
48
0
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