SignalStack
Where the money flows · what the market says
backend · postgres   ·   21.217 listings
Time
Sources
Active dictionary
Language
Hard term filter — click any term in panels to add
D1Metabase×D1BigQuery×D1BigQuery×D1sevdesk×D1BigQuery×D1BigQuery×D1BigQuery×D1Postgres×
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69 of 21.217 listings match. Time = 5y, src = 10/10, lang = all, dict = D1, terms = 8(ANY). last watermark · 2026-05-07
Demand index · last 4 wk vs window mean
3203%
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

13/20 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
sevdeskPostgresDATEVBigQueryExcel

03Top movers · current half vs prev half

largest |Δ%| · z-score (Poisson)

TermNowPrevΔ %z
Postgres25099.0
sevdesk39099.0
DATEV4099.0
Snowflake200.0
BigQuery4099.0
Lexoffice200.0
Tableau100.0
Looker100.0
Metabase200.0
Excel200.0
Jira100.0
Lexware100.0
HubSpot100.0

04Co-occurrence · top 20 pairs

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

Term ATerm BCountLift
sevdeskAPI141.30×
PostgresAPI50.73×
Postgresintegrieren42.21×
Postgrespipeline42.21×
pipelineAPI42.91×
DATEVexportieren37.39×
sevdeskexportieren30.76×
Postgresexportieren31.18×
PostgresDSGVO32.07×
DATEVsevdesk20.88×
DATEVPostgres21.38×
BigQuerySnowflake217.25×
Lexofficesevdesk21.77×
sevdeskautomate21.77×
ExcelPostgres22.76×
Postgresautomatisieren22.76×
automatisierenintegrieren213.80×
exportierenDSGVO24.93×
DATEVintegrieren13.45×
SnowflakeETL134.50×

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