SignalStack
Where the money flows · what the market says
backend · postgres   ·   20.032 listings
Time
Sources
Active dictionary
Language
Hard term filter — click any term in panels to add
D1Lexware×D1sevdesk×D1BigQuery×D1BigQuery×D1BigQuery×D1BigQuery×D1Postgres×
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92 of 20.032 listings match. Time = 5y, src = 10/10, lang = all, dict = D1, terms = 7(ANY). last watermark · 2026-05-07
Demand index · last 4 wk vs window mean
2826%
above baseline
Reg. pressure (D5 mentions)
4
across all listings in window
Top mover · D1
Postgres
∞ (z=99.0)
Recurring clusters
3
near-duplicate templates

01All 20 terms · Tools

12/20 have ≥1 citation · sparkline = trend · click row to filter · zero-count terms shown at bottom

02Term trend · top 5

anomalies marked · z > 2.5

024572021-052022-082023-112025-022026-05
sevdeskLexwarePostgresDATEVLexoffice

03Top movers · current half vs prev half

largest |Δ%| · z-score (Poisson)

TermNowPrevΔ %z
Postgres24099.0
sevdesk39099.0
DATEV5099.0
Lexware26099.0
Snowflake200.0
BigQuery4099.0
Lexoffice4099.0
Tableau100.0
Looker100.0
Metabase100.0
Excel100.0
HubSpot100.0

04Co-occurrence · top 20 pairs

Lift = P(A,B)/(P(A)·P(B)) · click to filter on both

Term ATerm BCountLift
sevdeskAPI141.32×
LexwareAPI60.85×
PostgresAPI50.77×
Postgresintegrieren41.92×
Postgrespipeline43.07×
pipelineAPI42.94×
DATEVexportieren36.90×
sevdeskexportieren30.88×
Postgresexportieren31.44×
Lexwareintegrieren31.33×
PostgresDSGVO32.88×
DATEVsevdesk20.94×
DATEVPostgres21.53×
Lexwareimportieren23.54×
BigQuerySnowflake223.00×
Lexofficesevdesk21.18×
sevdeskautomate22.36×
Postgresautomatisieren23.83×
automatisierenintegrieren211.50×
integrierenAPI20.92×

05Recurring clusters · near-duplicate listings

indicates productizable workflows · click row for records

ExemplarSourcesMembersMedian gap
j-mastr/sevdesk-php-sdk — An unofficial SDK for the official sevDesk APIGitHub249d
vadimrost/quickenergy — AI-powered invoice processing dashboard for QuickEnergy – OCR, duplicate detection, Skonto alerts, sevDesk & DATEV export.GitHub20d
Show HN: I extract recipes from TikTok, Instagram, and the messy webHacker20d
SignalStack · 5 yrs · 5 sources · self-running weekly · postgres backend