Self-hosted Services

Cloud Storage

NextCloud - a self-hosted file storage service
Obsidian-LiveSync: requires couchDB (both available in Unraid Apps)

File sync

Syncthing, implemented on iOS as Mobius. Möbius has limitations.
Magic Wormhole

Adblocking & Traffic filtering

AdGuard Home
Pihole

Photo backup

ente
Stingle
PhotoSync an app that assists with photo backup
PhotoPrism a self-hosted photo solution
Immich a self hosted photo solution

Video streaming

Plex
Jellyfin an open-source media streaming service
Overseerr - requests for plex

Books and Comics

Ubooquity
Kavita
ComicStreamer
AirComix Server and AirComix Viewer (Google Play / iOS App Store)
Chunky (comic streamer support, smb support)?

password managers

Vault Warden

Note taking

Joplin
Blinko

Dashboards

Homepage

home automation

Home Assistant
Homebridge

Financial Budgeting

I still have not found a ready-made way to connect one's bank account to self-hosted budgeting software - at least not in the US. In Europe it sounds like it's much easier. The alternative, as I understand, i can export this data manually and import it into

Firefly III - Popular. Full transaction management, categories & tags, budgets. Supports double-entry bookkeeping. Imports from CSV / OFX etc. Docker images available. Bank sync is often more manual or via third-party connectors (depends on region). Some setup needed. UI can be a bit complex for simple use cases.
Actual - Local-first personal finance tool based on zero-sum budgeting, supporting synchronization across devices, custom rules, manual transaction importing (from QIF, OFX, and QFX files), and optional automatic synchronization with many banks. Documentation
Financial Freedom (GitHub) - Designed as an open source alternative to Mint/YNAB. Self-hosted, modern stack. It’s relatively newer / more in development, so features may lag. Also bank integrations may be limited or need custom work.
Kresus - Personal finance manager. Probably more basic than Firefly III. May require more manual import. Might lack some advanced reporting or budgeting features.
OpenBudgeteer - Another budgeting app (open source) with “bucket budgeting” style and forecasting. Smaller community. Might lack user-friendly bank synchronization.
Beancount + Fava
KMyMoney - Desktop-based, mature, decent functionality. Good for tracking, categorization, reconciliation. Not as web-oriented, less ideal if you want multi-device / cloud / mobile access

See also Money, Budgeting, & Management at awesome-selfhosted.

Stock Portfolio

Ghostfolio: portfolio manager with a modern UI, requires Redis and PostgresQL to function Ghostfolio
rotki (GitHub): portfolio manager, crypto tracking, encrypted local storage
investbrain (GitHub): LLM-enabled investment tracker that consolidates and monitors market performance across your different brokerages