E621 Account Parser

A tiny web app for storing personal favorites and generating a personalized post feed.

💜 NOW LIVE 💜

At temporary domain https://e621scraper.duckdns.org

✨ Features

• Save and manage personal favorites
• Generate a customized feed based on your preferences
• Simple local dev setup (Rust backend + Trunk-served frontend)

---

🧰 Tooling Installation

Make sure you have Rust and cargo installed. Then:

cargo install cargo-watch
cargo install --locked trunk

cargo-watch enables hot-reload for the backend, and trunk serves/builds the frontend.

🚀 Running Locally

---

Backend

./config.toml

admin_user = "username"
admin_api = "api_key"
tag_blacklist = ["tag1", "tag2", "tagN"]
posts_domain = "https://uri.com"
posts_limit = 320 # 320 is max
rps_delay_ms = 250
max_retries = 3
df_floor = 0.7
idf_max = 100.0

[group_weights]
'artist' = 2.0
'character' = 1.5
'copyright' = 1.3
'species' = 1.2
'general' = 1.0
'meta' = 0.4
'lore' = 0.6

[priors]
now = "2000-1-01T12:00:00Z" # dummy value, will be replaced with current date
recency_tau_days = 14.0
quality_a = 0.00
quality_b = 0.00
mix_sim = 1.0
mix_quality = 0.0
mix_recency = 0.0
idf_lambda = 0.0
idf_alpha = 1.0
freq_alpha = 0.5

Small guide on scoring vars

Variable	Lower →	Higher →
df_floor	rarer tags hit harder (risk: spiky)	rarer tags toned down (stable)
idf_max	compress extremes	allow rarities to dominate more
idf_lambda	blend IDF toward 1 (flatter)	keep raw IDF contrast (sharper)
idf_alpha	stronger compression (flatter)	less compression (sharper)
freq_alpha	downplay frequency (treat counts similarly; more diversity)	amplify frequent tags (favorites dominate; less diversity)
quality_a	score_total matters less	score_total matters more
quality_b	fav_count matters less	fav_count matters more
recency_tau_days	faster decay (newer wins)	slower decay (older survives)
mix_sim	personalization weaker	personalization stronger
mix_quality	quality matters less	quality matters more
mix_recency	freshness matters less	freshness matters more

http://localhost:8080

cd ./parser-api/
cargo watch -x run

---

Frontend

./static/config.js

window.APP_CONFIG = Object.freeze({
    posts_domain: "https://uri.com",
    backend_domain: "https://uri.com",
});

http://localhost:8000

cd ./parser-web/
trunk serve