Han Highemerly
Skills
Projects
Articles
Accounts
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Han Highemerly
Skills
Projects
Articles
Accounts
Contact
EN
JA
☀
Projects
Services and tools I have built and operate.
Original Services
Hosteka
Event management SaaS for Fediverse communities. 100+ active users.
Next.js
Fediverse
Kubernetes
OAuth
SHAMEZO
Fediverse based photo-sharing social media services. (Limited Availability)
Next.js
Kubernetes
Fediverse
OAuth
AnyPost.dev
Single link to post simultaneously to Fediverse and legacy social networks.
Vue
Ruby on Rails
Kubernetes
Fediverse
REST API
Dominion Randomizer
Auto-selects kingdom cards for the board game Dominion.
Ruby
jQuery
Kubernetes
REST API
Service status
Service status is published.
Lambda
Victoria Metrics
Infrastructure & Operations
handon.club
Self-hosted Mastodon with custom patches
Fediverse
Ruby on Rails
Kubernetes
Elasticsearch
hiyoko.club
Self-hosted Misskey server focused on childcare topics.
Misskey
TypeScript
Kubernetes
Kubernetes Platform
Multi-service VKE cluster: Flux CD GitOps, VictoriaMetrics & Loki observability, Grafana alert, PosgreSQL backups.
Kubernetes
VictoriaMetrics
pgBackRest
Flux CD
Loki
Fluent bit
Grafana
Object storage
Last updated March 2026
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