diff --git a/net/utils/link-check/rs-lychee.txt b/net/utils/link-check/rs-lychee.txt
new file mode 100644
index 000000000..28f444354
--- /dev/null
+++ b/net/utils/link-check/rs-lychee.txt
@@ -0,0 +1,2 @@
+https://lychee.cli.rs/
+https://github.com/lycheeverse/lychee
diff --git a/science/ai/agent/free/langchain/docs/articles.txt b/science/ai/platforms/langchain/docs/articles.txt
similarity index 100%
rename from science/ai/agent/free/langchain/docs/articles.txt
rename to science/ai/platforms/langchain/docs/articles.txt
diff --git a/science/ai/agent/free/langchain/docs/books.txt b/science/ai/platforms/langchain/docs/books.txt
similarity index 100%
rename from science/ai/agent/free/langchain/docs/books.txt
rename to science/ai/platforms/langchain/docs/books.txt
diff --git a/science/ai/agent/free/langchain/docs/channels.txt b/science/ai/platforms/langchain/docs/channels.txt
similarity index 100%
rename from science/ai/agent/free/langchain/docs/channels.txt
rename to science/ai/platforms/langchain/docs/channels.txt
diff --git a/science/ai/agent/free/langchain/docs/courses.txt b/science/ai/platforms/langchain/docs/courses.txt
similarity index 100%
rename from science/ai/agent/free/langchain/docs/courses.txt
rename to science/ai/platforms/langchain/docs/courses.txt
diff --git a/science/ai/agent/free/langchain/docs/presentations.txt b/science/ai/platforms/langchain/docs/presentations.txt
similarity index 100%
rename from science/ai/agent/free/langchain/docs/presentations.txt
rename to science/ai/platforms/langchain/docs/presentations.txt
diff --git a/science/ai/agent/free/langchain/features/memory.txt b/science/ai/platforms/langchain/features/memory.txt
similarity index 100%
rename from science/ai/agent/free/langchain/features/memory.txt
rename to science/ai/platforms/langchain/features/memory.txt
diff --git a/science/ai/agent/free/langchain/flowise.txt b/science/ai/platforms/langchain/flowise.txt
similarity index 100%
rename from science/ai/agent/free/langchain/flowise.txt
rename to science/ai/platforms/langchain/flowise.txt
diff --git a/science/ai/agent/free/langchain/gigachain.txt b/science/ai/platforms/langchain/gigachain.txt
similarity index 100%
rename from science/ai/agent/free/langchain/gigachain.txt
rename to science/ai/platforms/langchain/gigachain.txt
diff --git a/science/ai/agent/free/langchain/langchain-agents.txt b/science/ai/platforms/langchain/langchain-agents.txt
similarity index 100%
rename from science/ai/agent/free/langchain/langchain-agents.txt
rename to science/ai/platforms/langchain/langchain-agents.txt
diff --git a/science/ai/agent/free/langchain/langchain4j.txt b/science/ai/platforms/langchain/langchain4j.txt
similarity index 100%
rename from science/ai/agent/free/langchain/langchain4j.txt
rename to science/ai/platforms/langchain/langchain4j.txt
diff --git a/science/ai/agent/free/langchain/langchainjs.txt b/science/ai/platforms/langchain/langchainjs.txt
similarity index 100%
rename from science/ai/agent/free/langchain/langchainjs.txt
rename to science/ai/platforms/langchain/langchainjs.txt
diff --git a/science/ai/agent/free/langchain/langgraph.txt b/science/ai/platforms/langchain/langgraph.txt
similarity index 100%
rename from science/ai/agent/free/langchain/langgraph.txt
rename to science/ai/platforms/langchain/langgraph.txt
diff --git a/science/ai/agent/free/langchain/search/ddg.txt b/science/ai/platforms/langchain/search/ddg.txt
similarity index 100%
rename from science/ai/agent/free/langchain/search/ddg.txt
rename to science/ai/platforms/langchain/search/ddg.txt
diff --git a/science/ai/agent/free/langchain/search/wikipedia.txt b/science/ai/platforms/langchain/search/wikipedia.txt
similarity index 100%
rename from science/ai/agent/free/langchain/search/wikipedia.txt
rename to science/ai/platforms/langchain/search/wikipedia.txt
diff --git a/science/ai/platforms/llamaindex/integration/llamaindex-qdrant.txt b/science/ai/platforms/llamaindex/integration/llamaindex-qdrant.txt
new file mode 100644
index 000000000..9de5d1e6d
--- /dev/null
+++ b/science/ai/platforms/llamaindex/integration/llamaindex-qdrant.txt
@@ -0,0 +1 @@
+https://github.com/qdrant/examples/blob/949669f001a03131afebf2ecd1e0ce63cab01c81/llama_index_recency/Qdrant%20and%20LlamaIndex%20%E2%80%94%20A%20new%20way%20to%20keep%20your%20Q%26A%20systems%20up-to-date.ipynb
diff --git a/science/ai/offline-local/llama/llamaindex.txt b/science/ai/platforms/llamaindex/llamaindex.txt
similarity index 100%
rename from science/ai/offline-local/llama/llamaindex.txt
rename to science/ai/platforms/llamaindex/llamaindex.txt