diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
new file mode 100644
index 0000000..52f4b72
--- /dev/null
+++ b/.github/workflows/go.yml
@@ -0,0 +1,93 @@
+name: Go
+
+on:
+  push:
+    branches:
+    - master
+    schedule:
+    - cron: '0 3 * * *'
+    tags:
+    - "v1.[0-9]+.[0-9]+"
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: "1.20"
+
+    - name: Run make test
+      run: make test
+
+    - name: Run make staticcheck
+      run: make staticcheck
+
+  build:
+    needs:
+    - lint
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    strategy:
+      matrix:
+        platform: ['darwin', 'linux', 'windows']
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: "1.20"
+
+    - name: Run make build-${{ matrix.platform }}
+      run: make build-${{ matrix.platform }}
+
+    - name: Check outputs
+      run: find ./releases -type f
+
+    - name: Cache builds
+      uses: actions/cache@v3
+      with:
+        path: ./releases
+        key: ${{ runner.os }}-go-${{ matrix.platform }}-${{ hashFiles('**/go.sum') }}-${{ github.ref_name }}
+
+  release:
+    # only work when it is a tagged release
+    # ref: https://docs.github.com/en/actions/learn-github-actions/expressions
+    if: ${{ github.ref_type == 'tag' && contains(github.ref, 'v1.') }}
+    needs:
+    - build
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Restore cache-darwin
+      uses: actions/cache@v3
+      with:
+        path: ./releases
+        key: ${{ runner.os }}-go-darwin-${{ hashFiles('**/go.sum') }}-${{ github.ref_name }}
+
+    - name: Restore cache-linux
+      uses: actions/cache@v3
+      with:
+        path: ./releases
+        key: ${{ runner.os }}-go-linux-${{ hashFiles('**/go.sum') }}-${{ github.ref_name }}
+
+    - name: Restore cache-windows
+      uses: actions/cache@v3
+      with:
+        path: ./releases
+        key: ${{ runner.os }}-go-windows-${{ hashFiles('**/go.sum') }}-${{ github.ref_name }}
+
+    - name: Check outputs
+      run: find ./releases -type f
+
+    - name: Run make release
+      run: make release
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
new file mode 100644
index 0000000..b39729d
--- /dev/null
+++ b/.github/workflows/stale.yml
@@ -0,0 +1,20 @@
+# This workflow warns and then closes issues and PRs that have had no activity for a specified amount of time.
+#
+# You can adjust the behavior by modifying this file.
+# For more information, see:
+# https://github.com/actions/stale
+name: Mark stale issues and pull requests
+
+on:
+  schedule:
+  - cron: '30 2 * * *'
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+
+    steps:
+    - uses: actions/stale@v7
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8994785
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,24 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Ignore vendor files
+vendor/*
+
+# Ignore binary releases
+releases/*
+
+# Ignore garbage
+.DS_Store
+
+# ignore binary output
+cloudtrail-cli
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..0b46bba
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,3 @@
+# v1.0.0 / 2023-02-23
+
+* Initial Release
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
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+
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+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
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+
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+
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+   Licensed under the Apache License, Version 2.0 (the "License");
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+       http://www.apache.org/licenses/LICENSE-2.0
+
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+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..d8b00c5
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,71 @@
+.PHONY: staticcheck dependency clean build release all
+
+PKGS       := $(shell go list ./...)
+GITVERSION := $(shell git describe --tags --abbrev=8)
+LDFLAGS    := -s -w
+
+default: build
+
+staticcheck:
+	@echo "Golang Staticcheck..."
+	@go install honnef.co/go/tools/cmd/staticcheck@2023.1.2
+	@for i in $(PKGS); do echo $${i}; staticcheck $${i}; done
+
+test:
+	go version
+	go fmt ./...
+	go vet ./...
+	# go test -v ./...
+
+dependency:
+	go mod download
+
+build-linux-x86_64:
+	@echo "Creating Build for Linux (x86_64)..."
+	@CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="$(LDFLAGS)" -o ./releases/$(GITVERSION)/Linux-x86_64/cloudtrail-cli
+	@cp ./LICENSE ./releases/$(GITVERSION)/Linux-x86_64/LICENSE
+	@tar zcf ./releases/$(GITVERSION)/cloudtrail-cli-Linux-x86_64.tar.gz -C releases/$(GITVERSION)/Linux-x86_64 cloudtrail-cli LICENSE
+
+build-linux-arm64:
+	@echo "Creating Build for Linux (arm64)..."
+	@CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags="$(LDFLAGS)" -o ./releases/$(GITVERSION)/Linux-arm64/cloudtrail-cli
+	@cp ./LICENSE ./releases/$(GITVERSION)/Linux-arm64/LICENSE
+	@tar zcf ./releases/$(GITVERSION)/cloudtrail-cli-Linux-arm64.tar.gz -C releases/$(GITVERSION)/Linux-arm64 cloudtrail-cli LICENSE
+
+build-darwin-x86_64:
+	@echo "Creating Build for macOS (x86_64)..."
+	@CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags="$(LDFLAGS)" -o ./releases/$(GITVERSION)/Darwin-x86_64/cloudtrail-cli
+	@cp ./LICENSE ./releases/$(GITVERSION)/Darwin-x86_64/LICENSE
+	@tar zcf ./releases/$(GITVERSION)/cloudtrail-cli-Darwin-x86_64.tar.gz -C releases/$(GITVERSION)/Darwin-x86_64 cloudtrail-cli LICENSE
+
+build-darwin-arm64:
+	@echo "Creating Build for macOS (arm64)..."
+	@CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags="$(LDFLAGS)" -o ./releases/$(GITVERSION)/Darwin-arm64/cloudtrail-cli
+	@cp ./LICENSE ./releases/$(GITVERSION)/Darwin-arm64/LICENSE
+	@tar zcf ./releases/$(GITVERSION)/cloudtrail-cli-Darwin-arm64.tar.gz -C releases/$(GITVERSION)/Darwin-arm64 cloudtrail-cli LICENSE
+
+build-windows-x86_64:
+	@echo "Creating Build for Windows (x86_64)..."
+	@CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags="$(LDFLAGS)" -o ./releases/$(GITVERSION)/Windows-x86_64/cloudtrail-cli.exe
+	@cp ./LICENSE ./releases/$(GITVERSION)/Windows-x86_64/LICENSE.txt
+	@tar zcf ./releases/$(GITVERSION)/cloudtrail-cli-Windows-x86_64.tar.gz -C releases/$(GITVERSION)/Windows-x86_64 cloudtrail-cli.exe LICENSE.txt
+
+build-linux: build-linux-x86_64 build-linux-arm64
+build-darwin: build-darwin-x86_64 build-darwin-arm64
+build-windows: build-windows-x86_64
+
+build: build-linux build-darwin build-windows
+
+clean:
+	@echo "Cleanup Releases..."
+	rm -rvf ./releases/*
+
+release:
+	@echo "Creating Releases..."
+	@curl -LO https://github.com/tcnksm/ghr/releases/download/v0.16.0/ghr_v0.16.0_linux_amd64.tar.gz
+	@tar --strip-components=1 -xvf ghr_v0.16.0_linux_amd64.tar.gz ghr_v0.16.0_linux_amd64/ghr
+	./ghr -version
+	./ghr -replace -recreate -token ${GITHUB_TOKEN} $(GITVERSION) releases/$(GITVERSION)/
+	sha1sum releases/$(GITVERSION)/*.tar.gz > releases/$(GITVERSION)/SHA1SUM
+
+all: staticcheck dependency clean build
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0e2d838
--- /dev/null
+++ b/README.md
@@ -0,0 +1,81 @@
+# cloudtrail-cli
+
+[![GitHub Actions](https://github.com/guessi/cloudtrail-cli/actions/workflows/go.yml/badge.svg?branch=master)](https://github.com/guessi/cloudtrail-cli/actions/workflows/go.yml)
+[![GoDoc](https://godoc.org/github.com/guessi/cloudtrail-cli?status.svg)](https://godoc.org/github.com/guessi/cloudtrail-cli)
+[![Go Report Card](https://goreportcard.com/badge/github.com/guessi/cloudtrail-cli)](https://goreportcard.com/report/github.com/guessi/cloudtrail-cli)
+[![GitHub release](https://img.shields.io/github/release/guessi/cloudtrail-cli.svg)](https://github.com/guessi/cloudtrail-cli/releases/latest)
+[![GitHub go.mod Go version](https://img.shields.io/github/go-mod/go-version/guessi/cloudtrail-cli)](https://github.com/guessi/cloudtrail-cli/blob/master/go.mod)
+
+Blazing fast single purpose cli for CloudTrail log filtering, written in golang
+
+# Install
+
+Find the latest download URL from [release](https://github.com/guessi/cloudtrail-cli/releases) page.
+
+```bash
+$ curl ${DOWNLOAD_URL} -o ./cloudtrail-cli
+$ chmod +x ./cloudtrail-cli
+$ mv /usr/local/bin/cloudtrail-cli
+```
+
+# Usage
+
+```bash
+$ cloudtrail-cli --version
+cloudtrail-cli version 1.0.0
+```
+
+```bash
+$ cloudtrail-cli --help
+NAME:
+   cloudtrail-cli - Blazing fast single purpose cli for CloudTrail log filtering
+
+USAGE:
+   cloudtrail-cli [global options] command [command options] [arguments...]
+
+VERSION:
+   1.0.0
+
+COMMANDS:
+   help, h  Shows a list of commands or help for one command
+
+GLOBAL OPTIONS:
+   --profile value, -p value
+   --region value, -r value
+   --start-time value, -s value   Timestamp in 2023-01-01T00:00:00 format (UTC)
+   --end-time value, -e value     Timestamp in 2023-01-01T00:00:00 format (UTC)
+   --event-id value               Filter events with event id
+   --event-name value             Filter events with event name
+   --event-source value           Filter events with event source
+   --user-name value              Filter events with user name
+   --read-only                    Filter events with ReadOnly=true (default: false)
+   --no-read-only                 Filter events with ReadOnly=false (default: false)
+   --max-results value, -n value  (default: "20")
+   --error-only                   Filter events with errors (default: false)
+   --help, -h                     show help
+   --version, -v                  print the version
+```
+
+### Sample Usage Case
+
+```bash
+$ cloudtrail-cli --start-time 2023-02-01T00:00:00 --end-time 2023-02-01T01:00:00 --event-name AssumeRole --max-results 10 --region us-east-1 --read-only
++--------------------------------------+------------+----------------------+----------+-------------------+-------------------------------+-------------------------------+-------------+-----------+----------+
+| EventId                              | EventName  | EventTime            | Username | EventSource       | UserAgent                     | SourceIPAddress               | AccessKeyId | ErrorCode | ReadOnly |
++--------------------------------------+------------+----------------------+----------+-------------------+-------------------------------+-------------------------------+-------------+-----------+----------+
+| 998a47f3-fb53-48e0-83f1-111111111111 | AssumeRole | 2023-02-01T00:58:28Z | -        | sts.amazonaws.com | eks.amazonaws.com             | eks.amazonaws.com             |             |           | true     |
+| 56018bd8-d0f4-41d3-a718-111111111111 | AssumeRole | 2023-02-01T00:57:51Z | -        | sts.amazonaws.com | internetmonitor.amazonaws.com | internetmonitor.amazonaws.com |             |           | true     |
+| be8672c8-7725-4503-8a66-111111111111 | AssumeRole | 2023-02-01T00:56:31Z | -        | sts.amazonaws.com | eks.amazonaws.com             | eks.amazonaws.com             |             |           | true     |
+| d5f7ff3f-af90-4f05-9050-111111111111 | AssumeRole | 2023-02-01T00:55:22Z | -        | sts.amazonaws.com | ssm.amazonaws.com             | ssm.amazonaws.com             |             |           | true     |
+| 5aee1df5-d78d-4cac-bc20-111111111111 | AssumeRole | 2023-02-01T00:43:24Z | -        | sts.amazonaws.com | eks.amazonaws.com             | eks.amazonaws.com             |             |           | true     |
+| 1b10a941-ee4a-490a-bd5c-111111111111 | AssumeRole | 2023-02-01T00:41:25Z | -        | sts.amazonaws.com | eks.amazonaws.com             | eks.amazonaws.com             |             |           | true     |
+| 139dd66c-d192-47fc-9158-111111111111 | AssumeRole | 2023-02-01T00:40:38Z | -        | sts.amazonaws.com | lambda.amazonaws.com          | lambda.amazonaws.com          |             |           | true     |
+| 5b2e956f-b73c-49bd-8970-111111111111 | AssumeRole | 2023-02-01T00:40:21Z | -        | sts.amazonaws.com | ssm.amazonaws.com             | ssm.amazonaws.com             |             |           | true     |
+| faa2fd13-f9b9-4276-90fa-111111111111 | AssumeRole | 2023-02-01T00:39:16Z | -        | sts.amazonaws.com | eks.amazonaws.com             | eks.amazonaws.com             |             |           | true     |
+| 8af6dc45-fd58-4ad5-9e95-111111111111 | AssumeRole | 2023-02-01T00:35:06Z | -        | sts.amazonaws.com | lambda.amazonaws.com          | lambda.amazonaws.com          |             |           | true     |
++--------------------------------------+------------+----------------------+----------+-------------------+-------------------------------+-------------------------------+-------------+-----------+----------+
+```
+
+# License
+
+[Apache-2.0](LICENSE)
diff --git a/cmd/flags.go b/cmd/flags.go
new file mode 100644
index 0000000..4cfe74b
--- /dev/null
+++ b/cmd/flags.go
@@ -0,0 +1,77 @@
+package cmd
+
+import (
+	"time"
+
+	"github.com/urfave/cli/v2"
+)
+
+var Flags = []cli.Flag{
+	&cli.StringFlag{
+		Name:     "profile",
+		Aliases:  []string{"p"},
+		Required: false,
+	},
+	&cli.StringFlag{
+		Name:     "region",
+		Aliases:  []string{"r"},
+		Required: false,
+	},
+	&cli.TimestampFlag{
+		Name:     "start-time",
+		Aliases:  []string{"s"},
+		Layout:   "2006-01-02T15:04:05",
+		Timezone: time.UTC,
+		Usage:    "Timestamp in 2023-01-01T00:00:00 format (UTC)",
+		Required: false,
+	},
+	&cli.TimestampFlag{
+		Name:     "end-time",
+		Aliases:  []string{"e"},
+		Layout:   "2006-01-02T15:04:05",
+		Timezone: time.UTC,
+		Usage:    "Timestamp in 2023-01-01T00:00:00 format (UTC)",
+		Required: false,
+	},
+	&cli.StringFlag{
+		Name:     "event-id",
+		Usage:    "Filter events with event id",
+		Required: false,
+	},
+	&cli.StringFlag{
+		Name:     "event-name",
+		Usage:    "Filter events with event name",
+		Required: false,
+	},
+	&cli.StringFlag{
+		Name:     "event-source",
+		Usage:    "Filter events with event source",
+		Required: false,
+	},
+	&cli.StringFlag{
+		Name:     "user-name",
+		Usage:    "Filter events with user name",
+		Required: false,
+	},
+	&cli.BoolFlag{
+		Name:     "read-only",
+		Usage:    "Filter events with ReadOnly=true",
+		Required: false,
+	},
+	&cli.BoolFlag{
+		Name:     "no-read-only",
+		Usage:    "Filter events with ReadOnly=false",
+		Required: false,
+	},
+	&cli.StringFlag{
+		Name:     "max-results",
+		Aliases:  []string{"n"},
+		Value:    "20",
+		Required: false,
+	},
+	&cli.BoolFlag{
+		Name:     "error-only",
+		Usage:    "Filter events with errors",
+		Required: false,
+	},
+}
diff --git a/cmd/wrapper.go b/cmd/wrapper.go
new file mode 100644
index 0000000..4f7f64d
--- /dev/null
+++ b/cmd/wrapper.go
@@ -0,0 +1,23 @@
+package cmd
+
+import (
+	"github.com/guessi/cloudtrail-cli/pkg/utils"
+	"github.com/urfave/cli/v2"
+)
+
+func QueryHandlerWrapper(c *cli.Context) {
+	utils.EventsHandler(
+		c.String("profile"),
+		c.String("region"),
+		c.Timestamp("start-time"),
+		c.Timestamp("end-time"),
+		c.String("event-id"),
+		c.String("event-name"),
+		c.String("event-source"),
+		c.String("user-name"),
+		c.Bool("read-only"),
+		c.Bool("no-read-only"),
+		c.Int("max-results"),
+		c.Bool("error-only"),
+	)
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..e3dd3ac
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,32 @@
+module github.com/guessi/cloudtrail-cli
+
+go 1.20
+
+require (
+	github.com/aws/aws-sdk-go-v2 v1.17.5
+	github.com/aws/aws-sdk-go-v2/config v1.18.15
+	github.com/aws/aws-sdk-go-v2/service/cloudtrail v1.24.2
+	github.com/google/uuid v1.3.0
+	github.com/jedib0t/go-pretty/v6 v6.4.4
+	github.com/urfave/cli/v2 v2.24.4
+)
+
+require (
+	github.com/aws/aws-sdk-go-v2/credentials v1.13.15 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.12.23 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.29 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.23 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.3.30 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.23 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.12.4 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.14.4 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.18.5 // indirect
+	github.com/aws/smithy-go v1.13.5 // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
+	github.com/rivo/uniseg v0.4.4 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/stretchr/testify v1.8.0 // indirect
+	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
+	golang.org/x/sys v0.5.0 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..0a66221
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,68 @@
+github.com/aws/aws-sdk-go-v2 v1.17.5 h1:TzCUW1Nq4H8Xscph5M/skINUitxM5UBAyvm2s7XBzL4=
+github.com/aws/aws-sdk-go-v2 v1.17.5/go.mod h1:uzbQtefpm44goOPmdKyAlXSNcwlRgF3ePWVW6EtJvvw=
+github.com/aws/aws-sdk-go-v2/config v1.18.15 h1:509yMO0pJUGUugBP2H9FOFyV+7Mz7sRR+snfDN5W4NY=
+github.com/aws/aws-sdk-go-v2/config v1.18.15/go.mod h1:vS0tddZqpE8cD9CyW0/kITHF5Bq2QasW9Y1DFHD//O0=
+github.com/aws/aws-sdk-go-v2/credentials v1.13.15 h1:0rZQIi6deJFjOEgHI9HI2eZcLPPEGQPictX66oRFLL8=
+github.com/aws/aws-sdk-go-v2/credentials v1.13.15/go.mod h1:vRMLMD3/rXU+o6j2MW5YefrGMBmdTvkLLGqFwMLBHQc=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.12.23 h1:Kbiv9PGnQfG/imNI4L/heyUXvzKmcWSBeDvkrQz5pFc=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.12.23/go.mod h1:mOtmAg65GT1HIL/HT/PynwPbS+UG0BgCZ6vhkPqnxWo=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.29 h1:9/aKwwus0TQxppPXFmf010DFrE+ssSbzroLVYINA+xE=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.29/go.mod h1:Dip3sIGv485+xerzVv24emnjX5Sg88utCL8fwGmCeWg=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.23 h1:b/Vn141DBuLVgXbhRWIrl9g+ww7G+ScV5SzniWR13jQ=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.23/go.mod h1:mr6c4cHC+S/MMkrjtSlG4QA36kOznDep+0fga5L/fGQ=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.3.30 h1:IVx9L7YFhpPq0tTnGo8u8TpluFu7nAn9X3sUDMb11c0=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.3.30/go.mod h1:vsbq62AOBwQ1LJ/GWKFxX8beUEYeRp/Agitrxee2/qM=
+github.com/aws/aws-sdk-go-v2/service/cloudtrail v1.24.2 h1:78Vd89OAhyNAvnxYrvG+KDS1JRhAw9FVnqwUvRIv750=
+github.com/aws/aws-sdk-go-v2/service/cloudtrail v1.24.2/go.mod h1:TUyo0xj0z79cbIcLwESK9Toc/G2K4GGwMrBI+G7jvpk=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.23 h1:QoOybhwRfciWUBbZ0gp9S7XaDnCuSTeK/fySB99V1ls=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.23/go.mod h1:9uPh+Hrz2Vn6oMnQYiUi/zbh3ovbnQk19YKINkQny44=
+github.com/aws/aws-sdk-go-v2/service/sso v1.12.4 h1:qJdM48OOLl1FBSzI7ZrA1ZfLwOyCYqkXV5lko1hYDBw=
+github.com/aws/aws-sdk-go-v2/service/sso v1.12.4/go.mod h1:jtLIhd+V+lft6ktxpItycqHqiVXrPIRjWIsFIlzMriw=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.14.4 h1:YRkWXQveFb0tFC0TLktmmhGsOcCgLwvq88MC2al47AA=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.14.4/go.mod h1:zVwRrfdSmbRZWkUkWjOItY7SOalnFnq/Yg2LVPqDjwc=
+github.com/aws/aws-sdk-go-v2/service/sts v1.18.5 h1:L1600eLr0YvTT7gNh3Ni24yGI7NSHkq9Gp62vijPRCs=
+github.com/aws/aws-sdk-go-v2/service/sts v1.18.5/go.mod h1:1mKZHLLpDMHTNSYPJ7qrcnCQdHCWsNQaT0xRvq2u80s=
+github.com/aws/smithy-go v1.13.5 h1:hgz0X/DX0dGqTYpGALqXJoRKRj5oQ7150i5FdTePzO8=
+github.com/aws/smithy-go v1.13.5/go.mod h1:Tg+OJXh4MB2R/uN61Ko2f6hTZwB/ZYGOtib8J3gBHzA=
+github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
+github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
+github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/jedib0t/go-pretty/v6 v6.4.4 h1:N+gz6UngBPF4M288kiMURPHELDMIhF/Em35aYuKrsSc=
+github.com/jedib0t/go-pretty/v6 v6.4.4/go.mod h1:MgmISkTWDSFu0xOqiZ0mKNntMQ2mDgOcwOkwBEkMDJI=
+github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo=
+github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfCI6z80xFu9LTZmf1ZRjMHUOPmWr69U=
+github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
+github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/pkg/profile v1.6.0/go.mod h1:qBsxPvzyUincmltOk6iyRVxHYg4adc0OFOv72ZdLa18=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
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+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
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+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..3108431
--- /dev/null
+++ b/main.go
@@ -0,0 +1,27 @@
+package main
+
+import (
+	"os"
+
+	"github.com/guessi/cloudtrail-cli/cmd"
+	"github.com/guessi/cloudtrail-cli/pkg/constants"
+	"github.com/urfave/cli/v2"
+)
+
+func main() {
+	app := &cli.App{
+		Name:    constants.NAME,
+		Usage:   constants.USAGE,
+		Version: constants.VERSION,
+		Flags:   cmd.Flags,
+		Action: func(c *cli.Context) error {
+			cmd.QueryHandlerWrapper(c)
+			return nil
+		},
+	}
+
+	err := app.Run(os.Args)
+	if err != nil {
+		os.Exit(1)
+	}
+}
diff --git a/pkg/constants/constants.go b/pkg/constants/constants.go
new file mode 100644
index 0000000..86abd21
--- /dev/null
+++ b/pkg/constants/constants.go
@@ -0,0 +1,7 @@
+package constants
+
+const (
+	NAME    string = "cloudtrail-cli"
+	USAGE   string = "Blazing fast single purpose cli for CloudTrail log filtering"
+	VERSION string = "1.0.0"
+)
diff --git a/pkg/types/types.go b/pkg/types/types.go
new file mode 100644
index 0000000..0823daf
--- /dev/null
+++ b/pkg/types/types.go
@@ -0,0 +1,63 @@
+package types
+
+// References:
+// - https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-event-reference.html
+// - https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-event-reference-record-contents.html
+// - https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-event-reference-user-identity.html
+
+// AssumedRole
+type SessionIssuer struct {
+	Type        string `json:"type"`
+	PrincipalId string `json:"principalId"`
+	Arn         string `json:"arn"`
+	AccountId   string `json:"accountId"`
+	UserName    string `json:"userName"`
+}
+
+type WebIdFederationData struct {
+	FederatedProvider string      `json:"federatedProvider"`
+	Attributes        interface{} `json:"attributes"`
+}
+
+type Attributes struct {
+	CreationDate     string `json:"creationDate"`
+	MfaAuthenticated string `json:"mfaAuthenticated"`
+}
+
+type SessionContext struct {
+	SessionIssuer       SessionIssuer       `json:"sessionIssuer"`
+	WebIdFederationData WebIdFederationData `json:"webIdFederationData"`
+	Attributes          Attributes          `json:"attributes"`
+}
+
+type UserIdentity struct {
+	Type           string         `json:"type"`
+	PrincipalId    string         `json:"principalId"`
+	Arn            string         `json:"arn"`
+	AccountId      string         `json:"accountId"`
+	AccessKeyId    string         `json:"accessKeyId"`
+	UserName       string         `json:"userName,omitempty"`
+	SessionContext SessionContext `json:"sessionContext,omitempty"`
+	InvokedBy      string         `json:"invokedBy"`
+}
+
+type CloudTrailEvent struct {
+	EventVersion       string       `json:"eventVersion"`
+	UserIdentity       UserIdentity `json:"userIdentity"`
+	EventTime          string       `json:"eventTime"`
+	EventSource        string       `json:"eventSource"`
+	EventName          string       `json:"eventName"`
+	AwsRegion          string       `json:"awsRegion"`
+	SourceIPAddress    string       `json:"sourceIPAddress"`
+	UserAgent          string       `json:"userAgent"`
+	ErrorCode          string       `json:"errorCode,omitempty"`
+	ErrorMessage       string       `json:"errorMessage,omitempty"`
+	RequestParameters  interface{}  `json:"requestParameters"`
+	ResponseElements   interface{}  `json:"responseElements"`
+	RequestId          string       `json:"requestID"`
+	EventId            string       `json:"eventID"`
+	ReadOnly           bool         `json:"readOnly"`
+	ManagementEvent    bool         `json:"managementEvent"`
+	RecipientAccountId string       `json:"recipientAccountId"`
+	EventCategory      string       `json:"eventCategory"`
+}
diff --git a/pkg/utils/handlers.go b/pkg/utils/handlers.go
new file mode 100644
index 0000000..1daa8ca
--- /dev/null
+++ b/pkg/utils/handlers.go
@@ -0,0 +1,102 @@
+package utils
+
+import (
+	"context"
+	"encoding/json"
+	"log"
+	"os"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/config"
+	"github.com/aws/aws-sdk-go-v2/service/cloudtrail"
+	"github.com/guessi/cloudtrail-cli/pkg/types"
+	"github.com/jedib0t/go-pretty/v6/table"
+	"github.com/jedib0t/go-pretty/v6/text"
+)
+
+func EventsHandler(profile, region string, startTime, endTime *time.Time, eventId, eventName, eventSource, userName string, readOnly, noReadOnly bool, maxResults int, errorOnly bool) {
+	// do nothing if maxResults is invalid input
+	if maxResults <= 0 {
+		log.Fatalf("Can not pass --max-results with a value lower or equal to 0.\n")
+	}
+
+	// --read-only and --no-read-only should be mutually exclusive
+	if readOnly && noReadOnly {
+		log.Fatalf("Can not pass --read-only and --no-read-only at the same time.\n")
+	}
+
+	cfg, err := config.LoadDefaultConfig(
+		context.TODO(),
+		config.WithRegion(region),
+		config.WithSharedConfigProfile(profile),
+	)
+	if err != nil {
+		log.Fatalf("Unable to load SDK config. Error: %s\n", err.Error())
+	}
+
+	svc := cloudtrail.NewFromConfig(cfg)
+
+	input := &cloudtrail.LookupEventsInput{
+		StartTime: startTime,
+		EndTime:   endTime,
+		LookupAttributes: composeLookupAttributesInput(
+			eventId,
+			eventName,
+			readOnly,
+			noReadOnly,
+			eventSource,
+			userName,
+		),
+		MaxResults: getBatchSize(maxResults),
+	}
+
+	events, err := LookupEvents(context.TODO(), svc, input, maxResults)
+	if err != nil {
+		log.Fatalf("Unable to ListTrails. Error: %s\n", err.Error())
+	}
+
+	t := table.NewWriter()
+	t.SetOutputMirror(os.Stdout)
+	t.AppendHeader(table.Row{
+		"EventId",
+		"EventName",
+		"EventTime",
+		"Username",
+		"EventSource",
+		"UserAgent",
+		"SourceIPAddress",
+		"AccessKeyId",
+		"ErrorCode",
+		"ReadOnly",
+	})
+
+	for _, event := range events {
+		var c types.CloudTrailEvent
+		if err := json.Unmarshal([]byte(*event.CloudTrailEvent), &c); err != nil {
+			panic(err)
+		}
+
+		// early exit if errorOnly flag is set
+		if errorOnly && len(c.ErrorCode) <= 0 {
+			continue
+		}
+
+		username := getDisplayUserName(c.UserIdentity)
+
+		t.AppendRow(table.Row{
+			c.EventId,
+			c.EventName,
+			c.EventTime,
+			username,
+			c.EventSource,
+			c.UserAgent,
+			c.SourceIPAddress,
+			c.UserIdentity.AccessKeyId,
+			c.ErrorCode,
+			c.ReadOnly,
+		})
+	}
+
+	t.Style().Format.Header = text.FormatDefault
+	t.Render()
+}
diff --git a/pkg/utils/utils.go b/pkg/utils/utils.go
new file mode 100644
index 0000000..4ee9ae6
--- /dev/null
+++ b/pkg/utils/utils.go
@@ -0,0 +1,125 @@
+package utils
+
+import (
+	"context"
+	"strings"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/service/cloudtrail"
+	ctypes "github.com/aws/aws-sdk-go-v2/service/cloudtrail/types"
+	"github.com/google/uuid"
+	"github.com/guessi/cloudtrail-cli/pkg/types"
+)
+
+func isValidUUID(u string) bool {
+	_, err := uuid.Parse(u)
+	return err == nil
+}
+
+func getDisplayUserName(u types.UserIdentity) string {
+	var username string
+	switch t := u.Type; t {
+	case "IAMUser":
+		username = u.UserName
+	case "WebIdentityUser":
+		username = u.UserName
+	case "AssumedRole":
+		username = strings.Split(u.Arn, "/")[2]
+	default:
+		username = "-"
+	}
+	return username
+}
+
+func getBatchSize(i int) *int32 {
+	var defaultBatchSize int = 50
+	var r int32
+	if i > 0 && i <= defaultBatchSize {
+		r = int32(i)
+	} else {
+		r = int32(defaultBatchSize)
+	}
+	return &r
+}
+
+func LookupEvents(ctx context.Context, svc *cloudtrail.Client, input *cloudtrail.LookupEventsInput, maxResults int) ([]ctypes.Event, error) {
+	var events []ctypes.Event
+	var returnSize int
+
+	paginator := cloudtrail.NewLookupEventsPaginator(svc, input)
+	for paginator.HasMorePages() {
+		out, err := paginator.NextPage(ctx)
+		if err != nil {
+			return nil, err
+		}
+		events = append(events, out.Events...)
+		if len(events) > maxResults {
+			break
+		}
+	}
+
+	returnSize = maxResults
+	if len(events) < maxResults {
+		returnSize = len(events)
+	}
+
+	return events[:returnSize], nil
+}
+
+func composeLookupAttributesInput(eventId, eventName string, readOnly, noReadOnly bool, eventSource, userName string) []ctypes.LookupAttribute {
+	lookupAttributesInput := []ctypes.LookupAttribute{}
+
+	if isValidUUID(eventId) {
+		attrEventId := ctypes.LookupAttribute{
+			AttributeKey:   ctypes.LookupAttributeKeyEventId,
+			AttributeValue: aws.String(eventId),
+		}
+		lookupAttributesInput = append(lookupAttributesInput, attrEventId)
+	}
+
+	if len(eventName) > 0 {
+		attrEventName := ctypes.LookupAttribute{
+			AttributeKey:   ctypes.LookupAttributeKeyEventName,
+			AttributeValue: aws.String(eventName),
+		}
+		lookupAttributesInput = append(lookupAttributesInput, attrEventName)
+	}
+
+	var shouldPassReadonly bool
+	var lookupAttributeKeyReadOnlyValue *string
+	if readOnly != noReadOnly {
+		shouldPassReadonly = true
+		if readOnly {
+			lookupAttributeKeyReadOnlyValue = aws.String("true")
+		}
+		if noReadOnly {
+			lookupAttributeKeyReadOnlyValue = aws.String("false")
+		}
+	}
+	if shouldPassReadonly {
+		attrReadOnly := ctypes.LookupAttribute{
+			AttributeKey:   ctypes.LookupAttributeKeyReadOnly,
+			AttributeValue: lookupAttributeKeyReadOnlyValue,
+		}
+		lookupAttributesInput = append(lookupAttributesInput, attrReadOnly)
+	}
+
+	const EVENT_SOURCE_SUFFIX = ".amazonaws.com"
+	if len(eventSource) > len(EVENT_SOURCE_SUFFIX) && strings.HasSuffix(eventSource, EVENT_SOURCE_SUFFIX) {
+		attrEventSource := ctypes.LookupAttribute{
+			AttributeKey:   ctypes.LookupAttributeKeyEventSource,
+			AttributeValue: aws.String(eventSource),
+		}
+		lookupAttributesInput = append(lookupAttributesInput, attrEventSource)
+	}
+
+	if len(userName) > 0 {
+		attrUserName := ctypes.LookupAttribute{
+			AttributeKey:   ctypes.LookupAttributeKeyUsername,
+			AttributeValue: aws.String(userName),
+		}
+		lookupAttributesInput = append(lookupAttributesInput, attrUserName)
+	}
+
+	return lookupAttributesInput
+}