Logger4Life

Logger4Life is a tool to quickly log recurring events. For example:

• Taking vitamins
• Counting pushups
• Changing diapers
• Standing up and stretching

Features

Custom Logs

Define custom log types for any kind of event you want to track. Each log gets its own quick-action button for one-tap logging.

Custom Fields

Logs can have optional custom fields to capture additional data with each entry. Supported field types:

• Text - free-form text input
• Number - numeric values (including decimals)
• Boolean - yes/no values

Fields can be marked as required or optional. Each log supports up to 20 custom fields.

Quick Logging

The home page provides a quick-log interface with cards for all your logs. Logs without required fields can be recorded in a single tap.

Entry Management

• View all entries for a log, sorted by most recent
• Edit entries to update field values or correct the timestamp
• Delete entries you no longer need

Log Sharing

Share your logs with other users so they can view and add entries:

• Generate a share link to invite others
• Revoke the share link at any time
• View who has access and remove individual users
• Shared users can view the log and create entries

User Accounts

• Register with a username and password (email optional)
• Session-based authentication

Tech Stack

• Frontend - SvelteKit 2 / Svelte 5 single-page app styled with Tailwind CSS 4
• Backend - Go API using Chi router, served on port 4000
• Database - PostgreSQL with pgx and connection pooling
• Testing - Go tests with testify (backend), Playwright (browser)
• Build - Vite (frontend), Rake tasks (build orchestration), mise (tool versions)

Development

Prerequisites

• Go 1.25+
• Node.js (managed via mise)
• PostgreSQL
• Ruby + Bundler (for Rake tasks)
• tern (database migrations)

Getting Started

1. Set up the PostgreSQL databases (logger4life_dev and logger4life_test) and the logger4life_app role.
2. Run database migrations:

   tern migrate --config postgresql/tern.conf --migrations postgresql/migrations

3. Start the frontend dev server:

   npm run dev

4. In a separate terminal, build and run the backend:

   rake run

The app will be available at http://localhost:5173 with API requests proxied to port 4000.

Common Commands

Command	Description
npm run dev	Start Vite dev server (port 5173)
rake run	Build and run the Go backend (port 4000)
rake rerun	Watch for backend changes and auto-restart
rake build	Build everything (frontend assets + Go binary)
rake test	Run all tests
rake test:backend	Run Go backend tests
rake test:browser	Run Playwright browser tests

Deployment

Logger4Life can easily be deployed with verna.

There are rake tasks that build artifacts suitable for deployment with verna and deploy/caddy-handle-template.json contains a preconfigured Caddy handle template.

If these are used, then deployment is one-line command.

rake build/linux_amd64.tar.gz && verna app deploy build/linux_amd64.tar.gz

Set your verna config in .mise.local.toml. For example:

[env]

VERNA_SSH_HOST = "logger4life.example.com"
VERNA_APP = "logger4life"