diff --git a/README.md b/README.md
index 919f126..3c1ea72 100644
--- a/README.md
+++ b/README.md
@@ -147,6 +147,9 @@ Heimdall https://github.com/benjamin-dobell/heimdall
 
 FastBoot https://android.googlesource.com/platform/system/core/+/master/fastboot/
 
+## SRE (Software Reverse Engineering)
+Ghidra https://github.com/nationalsecurityagency/ghidra
+
 ## Old School
 ### IRC Server
 UnrealIRCD https://www.unrealircd.org/
@@ -269,6 +272,13 @@ Kea https://www.isc.org/kea/
 ### S3-like storage
 RustFS (MinIO drop in replacement) ttps://rustfs.com/en/
 
+### Databases
+MariaDB https://mariadb.org/
+
+Apache Cassandra https://cassandra.apache.org/_/index.html
+
+Apache Accumulo https://accumulo.apache.org/
+
 ### monitoring and visualization
 Zabbix https://www.zabbix.com/
 
@@ -380,5 +390,8 @@ https://github.com/PluralKit/PluralKit
 ### Pronouns.Page
 https://gitlab.com/PronounsPage/PronounsPage
 
+### Ely.By
+See above.
+
 ## Trans Resources
 Pitch and Resonance Analyzer https://github.com/lmcnulty/gender-voice-visualization
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