Self-hosting portfolio

Best Docker Apps for Synology: What Is Worth Self-Hosting?

The best container is one that solves a recurring problem without turning the NAS into an unmaintainable dependency pile. Jellyfin, Home Assistant Container, Pi-hole, Paperless-ngx and Immich all fit legitimate Synology use cases, but they differ dramatically in storage, network, database, hardware-acceleration and uptime requirements.

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Quick answer

Choose services by failure impact as well as features

A media server can be unavailable for an hour with little consequence. DNS or home automation may be much more disruptive. Rank containers by criticality before putting every household service on one DiskStation.

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Hardware relevant to this technical workflow

This Sprint 9F catalogue is intentionally focused on current and previous Synology Plus systems. Storage-repair pages can also read compatible third-party NAS hard-drive data from Cloudzat Storage Price Intelligence in read-only mode. Product cards support the decision; they never override current Synology compatibility or model-specific repair rules.

Checking the dedicated Synology technical catalogue…

Technical decision

Build a small platform, not a container collection

Standardize persistent folders, Compose projects, backup, update windows and monitoring before adding more applications.

Interactive technical tool

Synology Docker App Fit Selector

Use this as a planning aid. It identifies capacity, redundancy, deployment or repair constraints, but it does not replace the current Synology model manual, DSM documentation or upstream application release notes.

Technical safety checklist

Four checks before changing a production NAS

Protect data before maintenance

A healthy RAID state is not a backup. Confirm an independent restorable copy before repairs, DSM upgrades, RAID migration or major container changes.

Change one layer at a time

Storage, DSM, networking and application changes should be separated so an unexpected result can be traced to one action rather than several.

Record the exact state

Write down model, DSM build, pool type, drive serials, ports, mapped folders and current application versions before modifying a production NAS.

Verify the result

A repair or upgrade is complete only after storage health, services, backups and representative restores behave as expected.

Jellyfin turns storage into a media service

Jellyfin turns storage into a media service is central to Best Docker Apps for Synology: it is a natural NAS workload when most clients direct play, while transcoding capability depends heavily on CPU, GPU exposure and codec requirements. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking jellyfin turns storage into a media service, compare the application-portfolio path result with that earlier application-portfolio path baseline.

A tested backup protects the application-portfolio path workflow during jellyfin turns storage into a media service. For Best Docker Apps for Synology, recovery of the application-portfolio path state matters more than speed.

Immich adds a modern photo stack

For Best Docker Apps for Synology, immich adds a modern photo stack matters because it combines database, machine-learning and media workloads, so memory and backup design matter more than for a simple file browser. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking immich adds a modern photo stack, compare the application-portfolio path result with that earlier application-portfolio path baseline.

Document the application-portfolio path decision around immich adds a modern photo stack. In Best Docker Apps for Synology, record why the application-portfolio path state changed and what outcome the application-portfolio path procedure expects.

Home Assistant Container is powerful but different from HA OS

Inside Best Docker Apps for Synology, the practical constraint is this: the container installation provides Home Assistant Core functionality but does not include the app ecosystem supplied by Home Assistant OS. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking home assistant container is powerful but different from ha os, compare the application-portfolio path result with that earlier application-portfolio path baseline.

Keep home assistant container is powerful but different from ha os separate from other application-portfolio path changes. On Best Docker Apps for Synology, isolating the application-portfolio path work makes a failure in the application-portfolio path path easier to identify.

Pi-hole is small but operationally critical

The Best Docker Apps for Synology reason to study pi-hole is small but operationally critical is straightforward: DNS uses little compute compared with media processing, yet an outage can make the whole network appear broken. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking pi-hole is small but operationally critical, compare the application-portfolio path result with that earlier application-portfolio path baseline.

Before buying hardware for pi-hole is small but operationally critical, decide whether the application-portfolio path target is capacity, redundancy or availability; verify the resulting application-portfolio path outcome directly.

Paperless-ngx benefits from dependable storage

Best Docker Apps for Synology planning can fail here because documents, OCR, a database and conversion services create a workflow where backups and searchable metadata are more valuable than raw throughput. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking paperless-ngx benefits from dependable storage, compare the application-portfolio path result with that earlier application-portfolio path baseline.

In Best Docker Apps for Synology, make the application-portfolio path step reversible. Back up the application-portfolio path state; change one variable for paperless-ngx benefits from dependable storage; verify the application-portfolio path result before continuing.

Password and secret services need a stricter threat model

A safer Best Docker Apps for Synology interpretation starts with one fact: a lightweight container can still hold extremely sensitive data, so exposure, updates, encryption and backup deserve more attention than CPU use. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking password and secret services need a stricter threat model, compare the application-portfolio path result with that earlier application-portfolio path baseline.

If a tutorial conflicts with the application-portfolio path behavior on Best Docker Apps for Synology, stop at password and secret services need a stricter threat model; follow the model-specific Synology instructions for the application-portfolio path condition.

Monitoring can catch resource contention

Monitoring can catch resource contention is central to Best Docker Apps for Synology: Container Manager statistics help identify a service consuming memory, CPU or network bandwidth before other NAS functions become unreliable. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking monitoring can catch resource contention, compare the application-portfolio path result with that earlier application-portfolio path baseline.

A tested backup protects the application-portfolio path workflow during monitoring can catch resource contention. For Best Docker Apps for Synology, recovery of the application-portfolio path state matters more than speed.

Databases deserve explicit protection

For Best Docker Apps for Synology, databases deserve explicit protection matters because applications with PostgreSQL, Redis or SQLite state often need consistent backup procedures in addition to copying user files. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking databases deserve explicit protection, compare the application-portfolio path result with that earlier application-portfolio path baseline.

Document the application-portfolio path decision around databases deserve explicit protection. In Best Docker Apps for Synology, record why the application-portfolio path state changed and what outcome the application-portfolio path procedure expects.

Network infrastructure needs redundancy

Inside Best Docker Apps for Synology, the practical constraint is this: running DNS, reverse proxy and automation on the same NAS can simplify administration but creates a common maintenance outage. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking network infrastructure needs redundancy, compare the application-portfolio path result with that earlier application-portfolio path baseline.

Keep network infrastructure needs redundancy separate from other application-portfolio path changes. On Best Docker Apps for Synology, isolating the application-portfolio path work makes a failure in the application-portfolio path path easier to identify.

Hardware acceleration should be earned by workload

The Best Docker Apps for Synology reason to study hardware acceleration should be earned by workload is straightforward: do not choose an application solely because it can use a GPU; measure whether transcoding or machine learning is actually the bottleneck. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking hardware acceleration should be earned by workload, compare the application-portfolio path result with that earlier application-portfolio path baseline.

Before buying hardware for hardware acceleration should be earned by workload, decide whether the application-portfolio path target is capacity, redundancy or availability; verify the resulting application-portfolio path outcome directly.

Updates should be staggered across services

Best Docker Apps for Synology planning can fail here because changing multiple images on the same evening can make it difficult to identify which migration or environment change caused an outage. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking updates should be staggered across services, compare the application-portfolio path result with that earlier application-portfolio path baseline.

In Best Docker Apps for Synology, make the application-portfolio path step reversible. Back up the application-portfolio path state; change one variable for updates should be staggered across services; verify the application-portfolio path result before continuing.

The best app list is intentionally short

A safer Best Docker Apps for Synology interpretation starts with one fact: five well-operated services with tested backups are more useful than twenty abandoned containers with unknown credentials and stale images. For Best Docker Apps for Synology, record the application-portfolio path baseline before action. When checking the best app list is intentionally short, compare the application-portfolio path result with that earlier application-portfolio path baseline.

If a tutorial conflicts with the application-portfolio path behavior on Best Docker Apps for Synology, stop at the best app list is intentionally short; follow the model-specific Synology instructions for the application-portfolio path condition.

Questions people ask

Best Docker Apps for Synology: common questions

What are the best Synology Docker apps?

Strong general-purpose candidates include Jellyfin, Immich, Home Assistant Container, Pi-hole and Paperless-ngx, depending on your workload.

For Best Docker Apps for Synology, "What are the best Synology Docker apps?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

Can I run all of them together?

Possibly on sufficiently capable hardware, but memory, ports, databases, storage and outage impact need to be planned as a system.

For Best Docker Apps for Synology, "Can I run all of them together?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

Which app needs the most hardware?

Media transcoding and photo machine learning can be more demanding than DNS or lightweight automation, but actual load depends on use.

For Best Docker Apps for Synology, "Which app needs the most hardware?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

Is Home Assistant Container the same as Home Assistant OS?

No. Home Assistant Container does not include the apps/add-ons environment of Home Assistant OS.

For Best Docker Apps for Synology, "Is Home Assistant Container the same as Home Assistant OS?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

Does Pi-hole need much RAM?

It is generally lightweight compared with media or photo services, but network criticality matters more than resource usage.

For Best Docker Apps for Synology, "Does Pi-hole need much RAM?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

Should I run databases on SSD?

Latency-sensitive application databases can benefit from SSD storage, but durability and backup remain more important than benchmark speed.

For Best Docker Apps for Synology, "Should I run databases on SSD?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

Can Docker apps access NAS shares?

Yes when folders are mapped and permissions allow access.

For Best Docker Apps for Synology, "Can Docker apps access NAS shares?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

Do I need a reverse proxy?

Only for workflows that require a public or hostname-based web path. Private VPN-style access may be simpler for administrative services.

For Best Docker Apps for Synology, "Do I need a reverse proxy?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

How often should I update containers?

Use a deliberate cadence based on security and application release notes rather than blindly auto-updating every image.

For Best Docker Apps for Synology, "How often should I update containers?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

Should I back up the Compose file?

Yes, together with environment configuration and persistent data needed to recreate the service.

For Best Docker Apps for Synology, "Should I back up the Compose file?" depends on the application-portfolio path: check the exact DSM build for the application-portfolio path, the NAS model, and the current application-portfolio path state.

Official references and methodology

Verify the exact model, DSM build and application state

This Best Docker Apps for Synology guide uses primary documentation for the application-portfolio path. Cloudzat evaluates the application-portfolio path capacity, redundancy, deployment and recovery layers separately. Interactive application-portfolio path results support planning; final application-portfolio path changes need exact model guidance and current upstream documentation.

As an Amazon Associate, Cloudzat may earn from qualifying purchases. Prices, NAS models, drive compatibility, DSM behavior and upstream application requirements can change. Verify the exact DiskStation model, current DSM documentation and application release notes before changing storage pools, replacing drives, exposing network services or upgrading production containers.