feat(docs): new use cases examples (#2522)

* feat(docs): new use cases examples

* chore(docs): bump sidebar indices

apps/docs/docs/how-oso-works/_category_.json

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 {
   "label": "Learn How OSO Works",
-  "position": 4,
+  "position": 5,
   "link": {
     "type": "doc",
     "id": "index"

apps/docs/docs/references/_category_.json

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 {
   "label": "References",
-  "position": 5,
+  "position": 6,
   "link": {
     "type": "doc",
     "id": "index"

apps/docs/docs/subscribe.mdx

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 ---
 title: Subscribe For Updates
-sidebar_position: 6
+sidebar_position: 9
 ---
 
 We post updates about once a month on our Substack newsletter. 

apps/docs/docs/use-cases/collection-view.md

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+---
+title: Analyze a Collection of Projects
+sidebar_position: 1
+---
+
+Get a high level view of key metrics for a collection of projects. New to OSO? Check out our [Getting Started guide](../get-started/index.mdx) to set up your BigQuery or API access.
+
+:::tip
+All **collections** are defined as YAML files in [OSS Directory](https://github.com/opensource-observer/oss-directory). View our current collections [here](https://github.com/opensource-observer/oss-directory/tree/main/data/collections).
+:::
+
+## BigQuery
+
+If you haven't already, then the first step is to subscribe to OSO public datasets in BigQuery. You can do this by clicking the "Subscribe" button on our [Datasets page](../integrate/overview/#oso-production-data-pipeline).
+
+The following queries should work if you copy-paste them into your [BigQuery console](https://console.cloud.google.com/bigquery).
+
+### All collections
+
+Get the names of all collections on OSO:
+
+```sql
+select
+  collection_name,
+  display_name
+from `oso_production.collections_v1`
+order by collection_name
+```
+
+### Projects in a collection
+
+Get the names of all projects in a collection:
+
+```sql
+select
+  project_id,
+  project_name
+from `oso_production.projects_by_collection_v1`
+where collection_name = 'gg-01'
+```
+
+### Code metrics
+
+Get code metrics for all projects in a collection:
+
+```sql
+select cm.*
+from `oso_production.code_metrics_by_project_v1` as cm
+join `oso_production.projects_by_collection_v1` as pbc
+  on cm.project_id = pbc.project_id
+where pbc.collection_name = 'ethereum-crypto-ecosystems'
+```
+
+### Onchain metrics
+
+Get onchain metrics for all projects in a collection:
+
+```sql
+select om.*
+from `oso_production.onchain_metrics_by_project_v1` as om
+join `oso_production.projects_by_collection_v1` as pbc
+  on om.project_id = pbc.project_id
+where pbc.collection_name = 'optimism'
+```
+
+### Funding metrics
+
+Get funding metrics for all projects in a collection:
+
+```sql
+select fm.*
+from `oso_production.funding_metrics_by_project_v1` as fm
+join `oso_production.projects_by_collection_v1` as pbc
+  on fm.project_id = pbc.project_id
+where pbc.collection_name = 'op-rpgf3'
+```
+
+## GraphQL
+
+The following queries should work if you copy-paste them into our [GraphQL sandbox](https://www.opensource.observer/graphql). For more information on how to use the GraphQL API, check out our [GraphQL guide](../integrate/api.md).
+
+### All collections
+
+Get the names of all collections on OSO:
+
+```graphql
+query Collections {
+  oso_collectionsV1 {
+    collectionName
+    displayName
+  }
+}
+```
+
+### Projects in a collection
+
+Get the names of all projects in a collection:
+
+```graphql
+query ProjectsInCollection {
+  oso_projectsByCollectionV1(where: { collectionName: { _eq: "gg-01" } }) {
+    projectId
+    projectName
+  }
+}
+```
+
+### Code metrics
+
+Get code metrics for all projects in a collection. This query returns two tables, `metrics` and `projects`, which can be joined client-side on `projectId`.
+
+```graphql
+query CodeMetricsQuery {
+  metrics: oso_codeMetricsByProjectV1 {
+    projectId
+    starCount
+    forkCount
+    commitCount6Months
+    contributorCount6Months
+  }
+  projects: oso_projectsByCollectionV1(
+    where: { collectionName: { _eq: "ethereum-crypto-ecosystems" } }
+  ) {
+    projectId
+  }
+}
+```
+
+### Onchain metrics
+
+Get onchain metrics for all projects in a collection. This query returns two tables, `metrics` and `projects`, which can be joined client-side on `projectId`.
+
+```graphql
+query OnchainMetricsQuery {
+  metrics: oso_onchainMetricsByProjectV1 {
+    projectId
+    transactionCount6Months
+    gasFeesSum6Months
+    newAddressCount90Days
+  }
+  projects: oso_projectsByCollectionV1(
+    where: { collectionName: { _eq: "optimism" } }
+  ) {
+    projectId
+  }
+}
+```
+
+### Funding metrics
+
+Get funding metrics for all projects in a collection. This query returns two tables, `metrics` and `projects`, which can be joined client-side on `projectId`.
+
+```graphql
+query FundingMetricsQuery {
+  metrics: oso_fundingMetricsByProjectV1 {
+    projectId
+    totalFundingReceivedUsd6Months
+  }
+  projects: oso_projectsByCollectionV1(
+    where: { collectionName: { _eq: "op-rpgf3" } }
+  ) {
+    projectId
+  }
+}
+```
+
+## Python
+
+See our guide on [writing Python notebooks](../integrate/python-notebooks.md) for more information on how to connect to BigQuery and query data. Our [Insights Repo](https://github.com/opensource-observer/insights) is full of examples too.
+
+### Connect to BigQuery
+
+You can use the following to connect to BigQuery:
+
+```python
+from google.cloud import bigquery
+import pandas as pd
+import os
+
+os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = # PATH TO YOUR CREDENTIALS JSON
+GCP_PROJECT = # YOUR GCP PROJECT NAME
+
+client = bigquery.Client(GCP_PROJECT)
+```
+
+### All collections
+
+Get the names of all collections on OSO:
+
+```python
+query = """
+  select
+    collection_name,
+    display_name
+  from `oso_production.collections_v1`
+  order by collection_name
+"""
+df = client.query(query).to_dataframe()
+```
+
+### Projects in a collection
+
+Get the names of all projects in a collection:
+
+```python
+query = """
+  select
+    project_id,
+    project_name
+  from `oso_production.projects_by_collection_v1`
+  where collection_name = 'gg-01'
+"""
+df = client.query(query).to_dataframe()
+```
+
+### Code metrics
+
+Get code metrics for all projects in a collection:
+
+```python
+query = """
+  select cm.*
+  from `oso_production.code_metrics_by_project_v1` as cm
+  join `oso_production.projects_by_collection_v1` as pbc
+    on cm.project_id = pbc.project_id
+  where pbc.collection_name = 'ethereum-crypto-ecosystems'
+"""
+df = client.query(query).to_dataframe()
+```
+
+### Onchain metrics
+
+Get onchain metrics for all projects in a collection:
+
+```python
+query = """
+  select om.*
+  from `oso_production.onchain_metrics_by_project_v1` as om
+  join `oso_production.projects_by_collection_v1` as pbc
+    on om.project_id = pbc.project_id
+  where pbc.collection_name = 'optimism'
+"""
+df = client.query(query).to_dataframe()
+```
+
+### Funding metrics
+
+Get funding metrics for all projects in a collection:
+
+```python
+query = """
+  select fm.*
+  from `oso_production.funding_metrics_by_project_v1` as fm
+  join `oso_production.projects_by_collection_v1` as pbc
+    on fm.project_id = pbc.project_id
+  where pbc.collection_name = 'op-rpgf3'
+"""
+df = client.query(query).to_dataframe()
+```
+
+## Adding collections and projects
+
+Projects and collections are defined as YAML files in our [OSS Directory repo](https://github.com/opensource-observer/oss-directory). You can add or update your own collections and projects by submitting a pull request.
+
+For more information on how collections work, see our guide [here](../how-oso-works/oss-directory/collection.md).

apps/docs/docs/use-cases/index.md

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+---
+title: Use Case Examples
+sidebar_position: 4
+---
+
+# Use Case Examples
+
+Examples of applications and data science built on OSO's data ≠platform. Each example includes code snippets you can copy and paste into your own projects.
+
+- 📊 [Collection View](./collection-view) - Get a high level view of key metrics for a collection of projects
+- 🔬 [Project Deepdive](./project-deepdive) - Do a deep dive into a specific project
+- 👥 Cohort Analysis (coming soon) - Track a cohort of projects across a set of metrics over time
+- 💸 Retro Funding (coming soon) - Generate algorithms for rewarding contributions retroactively
+- 🤝 Developer Retention (coming soon) - View developer churn and retention patterns over time
+- 🕸️ Network Graphs (coming soon) - Visualize collaboration patterns and community connections
+- ⭐ OpenRank (coming soon) - Run OpenRank on top of any network graph with your own trust seed assumptions
+- 🛡️ Trusted Users (coming soon) - Classify users on the basis of different trust signals