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A household ticks apps and sees, for an 8, 16 and 32 GB box: fits well / fits, but tight / does not fit, the totals, and the apps that burst on CPU. One rule in assets/sizing.js, every number from assets/sizing-data.json (built by scripts/build_sizing_web.py from the 2026-10-13 N100 measurement; test: 7 cases, red-proofed). Unlisted: noindex, robots Disallow, not in the sitemap, linked from nowhere — site_gates.py gate 25 enforces it (UNLISTED twin pairs keep every twin check). SIZING.md §5 corrected: the 8 GB line contradicted its own x1.5 rule; guest sizes 4.0/11.4/27.4 GB with the measured 612 MiB MemTotal shortfall. R-993 gains the fact that the installer accepts a host below any minimum.
12 KiB
What a Felhom box needs — sizing, 2026-10-13
Measured on the N100 demo box (demo-felhom: Intel N100, 4 cores, 16 GB). Method, sources and limits: METHOD.md.
Data file for the future estimator: sizing.json (rebuilt by tools/build_sizing.py). Memory is MB (MiB),
docker-style used. CPU is % of the whole N100 (4 cores = 100 %).
1. The floor — the box with no apps
| Part | Memory | Disk |
|---|---|---|
Whole host (Proxmox + agent + guest + platform), MemTotal − MemAvailable |
2,494 MB (peak 2,793) | host root 31 GB used of 94 GB, of which 19 GB = 3 local guest dumps |
| — of which inside the guest: platform containers + Docker daemons | ≈ 470 MB | guest system 1.1 GB, Docker volume 1.6 GB (platform images 1.55 GB) |
| traefik (proxy) | 113 MB (anon 15) | — |
| filebrowser (file browser) | 75 MB (anon 18) | — |
| cloudflared (tunnel) | 38 MB (anon 16) | — |
| felhom-controller | 29 MB (anon 28) | — |
| dockerd + containerd + shims | ≈ 220 MB RSS | — |
| CPU at rest, platform only | 0.4 % of the N100 | — |
| Power at rest (CPU package, approximate) | 3.9 W | — |
Samba is not in the floor: it runs only when sharing is switched on. Evidence: evidence/floor/.
2. Each app
| App | Typical MB | Peak MB | Catalog request / limit | CPU class | CPU rest % | Busiest minute % | Source |
|---|---|---|---|---|---|---|---|
Immich (immich) |
1,356 | 3,061 | 2,048 / 4,480 | heavy-in-bursts | 0.74 | 74.2 | onboarding ! |
Grimmory (grimmory) |
346 | 1,095 | 600 / 1,408 | medium | 0.83 | 22.0 | onboarding ! |
Karakeep (karakeep) |
361 | 1,050 | 700 / 2,816 | light | 0.6 | 2.9 | onboarding ! |
Cal.com (calcom) |
800 | 950 | 200 / 1,792 | light | 0.14 | 1.8 | onboarding |
Dawarich (dawarich) |
390 | 890 | 500 / 2,688 | light | 0.48 | 14.4 | onboarding |
Tandoor Recipes (tandoor) |
868 | 868 | 512 / 1,280 | medium | 0.16 | 20.0 | onboarding |
RomM (romm) |
528 | 769 | 300 / 1,280 | medium | 0.71 | 24.2 | telemetry |
SparkyFitness (sparkyfitness) |
305 | 664 | 400 / 1,792 | light | 0.23 | 0.4 | onboarding ! |
Paperless-ngx (paperless-ngx) |
568 | 659 | 500 / 1,664 | medium | 0.37 | 31.3 | telemetry |
n8n (n8n) |
321 | 550 | 512 / 1,536 | light | 0.1 | 0.5 | onboarding ! |
Nextcloud (nextcloud) |
314 | 525 | 256 / 1,664 | light | 0.4 | 12.8 | onboarding ! |
Komga (komga) |
442 | 496 | 200 / 768 | light | 0.15 | 0.5 | onboarding |
Docmost (docmost) |
415 | 495 | 200 / 896 | light | 0.38 | 0.8 | telemetry |
OnlyOffice (onlyoffice) |
364 | 488 | 512 / 2,048 | medium | 0.04 | 31.8 | measured |
Rallly (rallly) |
360 | 479 | 384 / 1,024 | light | 0.19 | 2.9 | onboarding |
AdventureLog (adventurelog) |
361 | 464 | 100 / 896 | medium | 0.45 | 19.3 | telemetry |
Grafana (grafana) |
220 | 435 | 100 / 512 | light | 0.31 | 1.0 | onboarding ! |
Mealie (mealie) |
273 | 431 | 200 / 1,000 | light | 0.15 | 1.4 | onboarding ! |
Calibre-Web Automated (calibre-web) |
191 | 413 | 200 / 768 | medium | 0.04 | 26.0 | telemetry ! |
Papra (papra) |
266 | 405 | 256 / 768 | light | 0.07 | 0.2 | onboarding |
Outline (outline) |
282 | 393 | 200 / 1,152 | light | 0.39 | 1.4 | onboarding |
Jellyfin (jellyfin) |
191 | 373 | 512 / 2,048 | heavy-in-bursts | 0.06 | 51.3 | measured |
Gramps Web (gramps-web) |
326 | 342 | 384 / 1,024 | light | 0.04 | 0.0 | onboarding |
MeTube (metube) |
62 | 329 | 128 / 768 | light | 0.03 | 0.1 | onboarding ! |
Home Assistant (home-assistant) |
318 | 328 | 256 / 1,024 | light | 0.2 | 2.4 | onboarding |
qBittorrent (qbittorrent) |
163 | 318 | 192 / 1,024 | light | 0.04 | 0.1 | onboarding ! |
wger (wger) |
246 | 267 | 256 / 416 | — | – | – | onboarding — hidden |
Plant-it (plant-it) |
50 | 256 | 50 / 256 | — | – | – | unmeasured — abandoned |
Claper (claper) |
248 | 248 | 100 / 640 | light | 0.3 | 0.5 | onboarding |
Kimai (kimai) |
163 | 240 | 100 / 640 | light | 0.16 | 0.8 | telemetry ! |
Plex (plex) |
232 | 234 | 512 / 2,048 | light | 0.22 | 3.4 | measured |
Uptime Kuma (uptime-kuma) |
103 | 227 | 50 / 256 | light | 0.2 | 0.2 | onboarding ! |
BookStack (bookstack) |
159 | 225 | 150 / 768 | light | 0.18 | 0.9 | telemetry ! |
Zipline (zipline) |
196 | 217 | 100 / 768 | light | 0.2 | 0.3 | onboarding |
Wishlist (wishlist) |
115 | 184 | 120 / 512 | light | 0.07 | 0.1 | onboarding ! |
Jellyseerr (seerr) |
166 | 168 | 100 / 384 | light | 0.04 | 0.1 | measured |
ActualBudget (actualbudget) |
44 | 167 | 50 / 256 | light | 0.06 | 0.1 | measured ! |
Ghost (ghost) |
149 | 149 | 150 / 512 | light | 0.08 | 0.2 | onboarding |
Wanderer (wanderer) |
143 | 147 | 350 / 1,024 | light | 0.2 | 0.3 | measured |
Emby (emby) |
142 | 146 | 512 / 2,048 | light | 0.18 | 1.9 | onboarding ! |
Gitea (gitea) |
74 | 136 | 100 / 512 | light | 0.04 | 0.1 | onboarding ! |
Homebox (homebox) |
17 | 118 | 50 / 256 | light | 0.06 | 0.1 | measured ! |
Termix (termix) |
102 | 117 | 30 / 128 | light | 0.04 | 0.1 | measured |
Grocy (grocy) |
30 | 114 | 60 / 384 | light | 0.04 | 0.3 | onboarding ! |
LubeLogger (lubelogger) |
53 | 113 | 80 / 512 | light | 0.08 | 0.3 | onboarding ! |
Vikunja (vikunja) |
20 | 104 | 50 / 256 | light | 0.0 | 0.0 | measured ! |
Radarr (radarr) |
96 | 100 | 150 / 512 | light | 0.09 | 0.3 | measured |
Vaultwarden (vaultwarden) |
44 | 99 | 50 / 256 | light | 0.03 | 0.0 | onboarding ! |
Crafty Controller (crafty-controller) |
78 | 84 | 256 / 2,048 | light | 0.09 | 0.2 | onboarding ! |
Homepage (homepage) |
82 | 83 | 50 / 256 | light | 0.03 | 0.0 | measured |
Gokapi (gokapi) |
7 | 77 | 30 / 128 | light | 0.03 | 0.0 | measured ! |
Sonarr (sonarr) |
77 | 77 | 150 / 512 | light | 0.07 | 0.2 | onboarding |
Recipe Importer (recipe-importer) |
63 | 72 | 30 / 128 | light | 0.09 | 0.1 | measured |
OpenGist (opengist) |
27 | 68 | 30 / 128 | light | 0.03 | 0.8 | telemetry |
SABnzbd (sabnzbd) |
68 | 68 | 192 / 1,024 | light | 0.04 | 0.1 | onboarding |
Code-Server (code-server) |
59 | 59 | 200 / 1,024 | light | 0.03 | 0.0 | measured |
PrivateBin (privatebin) |
40 | 59 | 30 / 128 | light | 0.04 | 0.0 | telemetry ! |
Audiobookshelf (audiobookshelf) |
48 | 54 | 100 / 512 | light | 0.04 | 0.1 | onboarding |
Radicale (radicale) |
27 | 27 | 40 / 128 | light | 0.03 | 0.0 | onboarding |
Transmission (transmission) |
6 | 22 | 64 / 512 | light | 0.05 | 0.1 | onboarding ! |
Navidrome (navidrome) |
14 | 18 | 50 / 256 | light | 0.04 | 0.1 | onboarding |
BentoPDF (bentopdf) |
5 | 10 | 100 / 384 | light | 0.03 | 0.0 | telemetry ! |
Glance (glance) |
6 | 7 | 20 / 128 | light | 0.03 | 0.0 | measured |
NZBGet (nzbget) |
5 | 5 | 64 / 512 | light | 0.04 | 0.1 | onboarding |
source: telemetry = hub fleet data ≥ 7 days · onboarding = an earlier session's measured peak · measured = this bench ·
unmeasured = catalog value. ! = two sources' peaks differ by more than 50 %; the higher is used (all values:
evidence/apps-table.json). — = not installable today (hidden / abandoned), no bench.
The five largest peaks: Immich 3,061 · Grimmory 1,095 · Karakeep 1,050 · Cal.com 950 · Dawarich 890 MB. CPU bursts (heavy-in-bursts): Immich — 74 % for the busiest minute, while it reads new photos; Jellyfin — 51 %, while it converts a film (CPU only, no GPU passed through). Medium: Paperless-ngx 31 % (reading scans), OnlyOffice 32 %, Calibre-Web 26 %, RomM 24 %, Grimmory 22 %, Tandoor 20 %, AdventureLog 19 % (first start). Every other app stays under 15 % even at first start.
3. Catalog accuracy (§7 C — templates NOT changed; evidence/catalog-check.json)
Near a memory limit (peak > 80 %) — risk: the container is stopped for using too much memory:
| App | Finding | Source |
|---|---|---|
| docmost | container docmost 475 MB = 93 % of its 512 MB limit |
telemetry + bench |
| romm | container romm 703 MB = 92 % of its 768 MB limit |
telemetry + bench |
| termix | 117 MB = 91 % of its 128 MB limit | bench |
| uptime-kuma | 227 MB = 89 % of mem_limit 256 MB |
telemetry (tester-1) |
| grafana | 435 MB = 85 % of its 512 MB limit | bench |
| immich | container immich-server 1,665 MB = 81 % of its 2,048 MB limit (kernel peak incl. cache 4,365 of 4,480 MB for the app) |
bench, 200-photo import |
| tandoor | container tandoor 827 MB = 81 % of its 1,024 MB limit |
bench |
No container was killed for memory during the bench (oom_kill = 0 in every container).
Typical use above mem_request (the catalog's figure is too low), 23 apps: calcom ×4.0 · adventurelog ×3.6 ·
termix ×3.4 · claper ×2.5 · grafana ×2.2 · komga ×2.2 · docmost ×2.1 · recipe-importer ×2.1 · uptime-kuma ×2.1 ·
zipline ×2.0 · romm ×1.8 · seerr ×1.7 · tandoor ×1.7 · homepage ×1.6 · kimai ×1.6 · mealie ×1.4 · outline ×1.4 ·
privatebin ×1.3 · home-assistant ×1.2 · nextcloud ×1.2 · bookstack ×1.1 · paperless-ngx ×1.1 · papra ×1.0.
4. Power
| State | CPU package (RAPL) | Wall |
|---|---|---|
| Platform at rest, 15 min | 3.9 W | not measured — no meter (operator, 2026-10-13) |
| Immich import, 200 photos + all jobs (411 s) | 12.5 W average, 14.7 W busiest minute; 70 °C max | not measured |
Approximate, CPU only — not wall power. The wall figure adds the board, SSD, HDD, fan and power-supply losses.
5. Proposed minimum machine — a proposal; the operator decides
Worked from: floor + the household set (Immich, Jellyfin, Nextcloud, Home Assistant, Vaultwarden, Paperless-ngx).
| Memory | |
|---|---|
| Household set, typical (sum) | 2,791 MB |
| Household set, all at peak at once (sum — they rarely coincide; deliberately pessimistic) | 5,045 MB |
| Guest platform | ≈ 470 MB |
| Guest needs at peak | ≈ 5.5 GB |
| + 50 % headroom | ≈ 8.3 GB guest |
| + the host's share (the installer keeps 4 GB for Proxmox; it used ≈ 2.0 GB here) | ≈ 12.3 GB box |
Headroom 50 %, because: the bench library is small (200 photos; tester-1's real Immich already peaked at 2.9 GB); the nightly backup runs database dumps and restic next to the apps; an update pulls new images while the old ones run; and the page cache is what makes a photo library feel fast.
| Minimum | Recommended | |
|---|---|---|
| CPU | x86-64, 4 cores, N100 class or newer (Intel or AMD) | N100 / N150 / N305 or better; Intel Quick Sync helps Jellyfin later (not used today) |
| Memory | 8 GB | 16 GB |
| System disk | 256 GB SSD | 512 GB SSD (NVMe or SATA) |
| Data | a separate drive for photos and films | same |
| Out | ARM (Raspberry Pi), Synology / QNAP and other NAS appliances, routers, cloud VPS, 32-bit machines | — |
Disk, why: the installer gives the guest a 32 GB system volume and, from the free space, a 70 / 130 / 250 GB data volume; the host keeps three daily guest dumps (19 GB on this box). Image sizes per app were not measured in this run.
What each size runs — three verdicts, the same rule as the estimator page (/gepigeny, website/assets/sizing.js).
Corrected 2026-10-13: the lines here first said an 8 GB box runs Immich „on its own” while this section sizes a box at
peak × 1.5 — which Immich alone does not meet on 8 GB ((470 + 3,061) × 1.5 ≈ 5.2 GB > 4 GB), though its peak fits
(3.4 GB). Three verdicts say both honestly. The guest is the installer's rule on MemTotal = label − 612 MiB (the
16 GB N100 reports 15,772 MiB): 8 GB → 4.0 GB, 16 GB → 11.4 GB, 32 GB → 27.4 GB (the first version said 11.6 / 27.6).
Fits well: peak × 1.5 ≤ guest · fits, but tight: peak ≤ guest < peak × 1.5 — works, but a large photo import or
a backup at the same time can slow it down · does not fit: guest < peak. Peak = 470 MB platform + the apps' peaks summed.
| Selection | Peak | 8 GB | 16 GB | 32 GB |
|---|---|---|---|---|
| Household set | 5.4 GB | does not fit | fits well | fits well |
| Household set without Immich | 2.4 GB | fits well | fits well | fits well |
| Immich alone | 3.4 GB | fits, but tight | fits well | fits well |
| All 62 apps | 21.3 GB | does not fit | does not fit | fits, but tight |
- 8 GB: the household set without Immich fits well; Immich alone fits, but tight; the whole household set does not fit.
- 16 GB: the whole household set fits well.
- 32 GB: the household set fits well; all 62 apps at once fit, but tight.